HomeMy WebLinkAboutCOUNCIL - AGENDA ITEM - 06/06/2017 - ITEMS RELATING TO THE ADOPTION OF THE 2015 INTERNAAgenda Item 8
Item # 8 Page 1
AGENDA ITEM SUMMARY June 6, 2017
City Council
STAFF
Mike Gebo, Chief Building Official
SUBJECT
Items Relating to the Adoption of the 2015 International Codes.
EXECUTIVE SUMMARY
A. Public Hearing and First Reading of Ordinance No. 072, 2017, Amending Chapter 5, Article II, Division 2,
of the Code of the City of Fort Collins for the Purpose of Repealing the 2012 International Building Code
(IBC) and Adopting the 2015 International Building Code, with Amendments.
B. Public Hearing and First Reading of Ordinance No. 073, 2017, Amending Chapter 5, Article II, Division 2,
of the Code of the City of Fort Collins for the Purpose of Repealing the 2012 International Energy
Conservation Code (IECC) and Adopting the 2015 International Energy Conservation Code, with
Amendments.
C. Public Hearing and First Reading of Ordinance No. 074, 2017, Amending Chapter 5, Article II, Division 2,
of the Code of the City of Fort Collins for the Purpose of Repealing the 2012 International Residential
Code (IRC) and Adopting the 2015 International Residential Code, with Amendments.
D. Public Hearing and First Reading of Ordinance No. 075, 2017, Amending Chapter 5, Article IV, of the Code
of the City of Fort Collins for the Purpose of Repealing the 2012 International Mechanical Code (IMC) and
Adopting the 2015 International Mechanical Code, with Amendments.
E. Public Hearing and First Reading of Ordinance No. 076, 2017, Amending Chapter 5, Article IV, of the Code
of the City of Fort Collins for the Purpose of Repealing the 2012 International Fuel Gas Code (IFGC) and
Adopting the 2015 International Fuel Gas Code, with Amendments.
The purpose of this item is to recommend adoption of the 2015 International Codes (I-Codes). The 2015 I-
Codes represent the most up-to-date construction standards establishing minimum requirements to safeguard
the public health, safety, and general welfare from hazards attributed to the built environment within the City of
Fort Collins.
STAFF RECOMMENDATION
Staff recommends adoption of the Ordinances on First Reading.
BACKGROUND/DISCUSSION
The 2015 International Codes (2015 I-Codes) represent the most up-to-date, comprehensive, and fully
integrated body of codes regulating building construction and systems using prescriptive and performance-
related provisions. The purpose of these codes is to establish the minimum construction requirements to
safeguard the public health, safety and general welfare by regulating building elements including, but not
limited to, structural strength and stability, sanitation, light and ventilation, energy conservation, and property
protection from hazards attributed to the built environment within the City of Fort Collins.
Agenda Item 8
Item # 8 Page 2
Since 1924 the City of Fort Collins has periodically reviewed, amended, and adopted the latest nationally
recognized building standards available for the times. The City has updated the minimum construction
standards 14 times since 1924.
The 2015 International Codes will replace the 2012 editions of the IBC, IRC, IMC, IFGC, and the IECC all of
which were adopted by City Council on February 17, 2014.The 2015 International Codes are being proposed
with local amendments to address building elements unique to Fort Collins and the surrounding region.
Building codes and standards are reviewed and voted on by code officials and construction industry
professionals from across the country and published every three years under the oversight of the International
Code Council (ICC). These five core 2015 I-Codes represent the latest construction publications from ICC.
Review Process
The adoption of new building codes is always an important topic for Fort Collins and surrounding jurisdictions.
The implementation of new building standards can have a dramatic impact on the construction industry and the
economy of the community. In order to better understand these impacts, a code review committee is convened
for the purpose of reviewing the new codes and all local amendments. The code review committee represents
a wide spectrum of volunteers from across the local construction industry including private developers,
residential and commercial builders, architects, engineers, representatives from the energy conservation
sector and Poudre Fire Authority. (Attachment 1)
The code review committee met regularly for most of 2016 to discuss new proposed local amendments and
current local amendments, particularly those current local amendments that did not have the intended results
or were shown to be ineffective and costly to the construction industry. In December the code review
committee found that the proposed local amendments as presented are neither controversial nor overly
onerous or cost prohibitive on the construction industry and voted to support and move for adoption the 2015 I-
Codes and amendments. While this review process requires considerable time and resources, it produces
enforceable and effective building codes and local amendments that the community and construction industry
support and create together.
Amendments Overview
The 2015 I-Codes can be considered an editing edition where code sections are reworded, reorganized, or
renumbered for better ease of use and consistency. While past editions such as the 2009 and 2012 editions
had significant cost of construction impacts, especially in the energy conservation sections, the 2015 I-Codes
do not have the same effect on the construction industry.
The majority of local amendments associated with the current 2012 I-Codes remain in place. A handful of new
amendments are being proposed which support the City’s sustainability goals and the Climate Action Plan and
include:
Proposed amendments to the IBC
New commercial and multi-family buildings would require that exterior building mounted light fixtures be
Dark Sky listed or of a similar type.
This proposed amendment is considered cost neutral since a light fixture is required; the amendment
requires a different style of light fixture.
Multi-family projects will be required to provide one accessible roll-in shower for each 26 dwelling units
rather than each 51 dwelling units as established by the IBC.
This proposed amendment is considered cost neutral since a bathtub would have been installed; the
proposed amendment would require an accessible roll-in shower sooner than the code requirement.
Plumbing labor would be the same but tile work may increase slightly.
Agenda Item 8
Item # 8 Page 3
Multi-family projects with not more than six (6) dwelling units, or twelve (12) dwellings separated by a two-
hour firewall, may be protected by a National Fire Protection Association (NFPA) 13R fire-suppression
system in lieu of the current amendment requiring the higher level of protection NFPA 13 fire-suppression
system.
This proposed amendment is considered a cost decrease. This one change is expected to lower the cost
of a fire-suppression system in small multi-family buildings by 50%.
Multi-family projects which incorporate habitable lofts will be required to provide one emergency escape
widow accessed from the loft area.
This proposed amendment can be considered a cost increase but only for those multi-family projects that
propose to install loft areas. The majority of new multi-family projects do not incorporate loft areas and this
proposed amendment would have no impact.
Proposed amendments to the IRC
New homes are to be provided with an empty 3/4 inch conduit from the attic to the main electrical panel for
ease of installing future photovoltaic (PV) system signaling wiring.
This proposed amendment is considered a cost increase. Estimate for this conduit and installation is $200.
New homes are to be provided with an empty 1/2 inch conduit from the main electrical panel board to an
empty junction box in the garage for ease of installing future electrical vehicle (EV) charging outlet.
This proposed amendment is considered a cost increase. Estimate for this conduit and installation is $100.
New homes with gas cooking appliances shall be provided with kitchen exhaust hoods, vented to the
outside and sized for cubic feet per minute (CFM) exhaust at the code established rates.
This proposed amendment is considered a cost decrease by removing the current 2012 local amendment
which requires kitchen exhaust CFM rates to be based on a ratio of British Thermal Units (BTU) of the gas
appliance. Using the current amendment of CFM to BTU ratio, exhaust system CFM calculation rates were
high enough that make-up air was required to offset that which the kitchen hood exhausted. The make-up
air system could range in cost from $200 to $400.
New dwelling units which are constructed with habitable lofts would be required to install an emergency
escape window accessed from the loft area.
This proposed amendment is considered a cost neutral. New homes with habitable lofts typically have an
emergency escape window installed as part of the loft option. However, if the option did not include an
escape window the cost increase is estimated at $200 to $300 for a stock double hung egress window.
The cost assumptions discussed in each bullet above where arrived at after staff reached out to the
tradespeople who would be involved with the code requirement such as electricians, plumbers, mechanical
contractors, and fire-suppression contractors. Construction supply houses were contacted for an estimate of
off-the-shelf materials involved such as the egress windows for loft areas. The Cost of Code estimates are for
standard stock materials and labor when known. (Attachment 2)
Vinyl Siding Concern
When the current 2012 I-Codes were adopted, one local amendment disallowed the use of vinyl and
polypropylene vinyl siding products on new buildings. This amendment was the result of a review of two multi-
family projects involved in fires which destroyed several dwelling units in each event.
The two affordable housing projects, Buffalo Run and Bull Run, were constructed using vinyl siding products.
Each fire event was found to be started from the exterior of the building. In each event the vinyl siding products
melted away exposing the structural wood sheathing. The fires spread upward along the exposed wood
sheathing until the vinyl soffit materials melted away exposing the attic framing to the fire. Once the fire
reached the attic, it spread across the top of dwelling units until it reached the fire-rated wall where Poudre Fire
Authority personnel were able to halt the fire spread. Although the vinyl siding itself did not ignite, its melting
away exposed the wood sheathing beneath contributing to the spread of the fire upward.
Agenda Item 8
Item # 8 Page 4
Throughout this current code cycle, there have been no projects of multi-family, single-family, or commercial
where vinyl siding products were proposed. There have been no questions or concerns expressed over the
local amendments, except from the Vinyl Siding Institute (VSI) represented by Mr. Matt Dobson. On May 31,
2016, Mr. Dobson was afforded time in front of the Code Review Committee to discuss vinyl products, he also
reached out to the Building Review Board and City Council. (Attachment 3)
The Code Review Committee discussed the use of vinyl siding products and while there were varying opinions
on the use of the products, members indicated that an outright ban on these products may not be needed but
rather the local amendment should allow these products but only if installed over a fire-rated wall assembly.
(Attachment 4)
The 2015 IRC and IBC allow the use of vinyl siding products in new construction with limitations on its use in
high wind areas. Ft. Collins has established 100 mile per hour as the design wind speed to be used for new
construction, which is just under the wind speed limit for vinyl siding products.
The proposed amendment reinstates the use of vinyl siding products on new buildings when the vinyl siding is
installed over a one-hour fire-rated assembly. This amendment would provide a layer of fire-resistance
materials, typically a drywall gypsum product, directly behind the vinyl siding in whatever position the vinyl
material is installed. In the event of an external fire, it is supposed that the vinyl siding would again melt away
and the fire-rated assembly of gypsum materials would impede the spread of flames both in the vertical and
horizontal plane.
This proposed change, of installing vinyl siding products over a fire-resistant surface, is consistent with VSI’s
literature regarding the use of vinyl siding products within the Wildland-Urban Interface (WUI) areas. Although
the City is not located within a WUI, new developments have become increasingly dense. Structures are closer
together than in the past and one exterior fire event can impact a number of buildings, or as was seen in the
past, numerous families. This change no longer prohibits the use of vinyl siding products within the City, as
requested by the VSI’s representative. The proposed amendment does however; require an additional layer of
fire-resistance for projects when using a product that has shown to melt away exposing the more flammable
sub-sheathing and framing. This change is supported by the code review committee and the Poudre Fire
Authority.
Below are the proposed amendments for the use of these products in both the IRC and IBC.
(IRC) R703.11.1 Installation. Vinyl siding, soffit and accessories shall be installed in accordance with the
manufacturer’s instructions. Vinyl siding products shall be installed over a one-hour fire-rated assembly listed
for an exterior fire exposure in both the vertical and horizontal plane.
(IRC) R703.14.1 Polypropylene. Polypropylene siding and accessories shall be installed in accordance with
manufacturer’s installation instructions. Polypropylene siding products shall be installed over a one-hour fire-
rated assembly listed for an exterior fire exposure in both the vertical and horizontal plane.
(IBC) 1404.9.1 Vinyl siding installation. Vinyl siding products shall be installed over a one-hour fire-rated
assembly listed for an exterior fire exposure in both the vertical and horizontal plane.
(IBC) 1404.12.3 Polypropylene siding. Polypropylene siding products shall be installed over a one-hour fire-
rated assembly listed for an exterior fire exposure in both the vertical and horizontal plane.
The 2015 I-Codes were discussed by staff from various City departments through the Sustainability
Assessment Tool (SAT) process. The discussion points addressed housing affordability, accessibility,
improvements to the environment and overall benefits to the citizens. The SAT review concluded that the 2015
I-Codes result in a slightly positive SAT rating. (Attachment 6)
Agenda Item 8
Item # 8 Page 5
CITY FINANCIAL IMPACTS
Alterations to or new construction of City owned properties must comply with the provisions of the 2015 I-
Codes. The scope of work to be performed will determine the financial impact to the City. In general, there are
no Citywide financial impacts expected with the adoption of the 2015 I-Codes.
Community Development and Neighborhood Services (CDNS) anticipates the following financial impacts and
expects these cost to be absorbed into the current CDNS budget:
1. Purchase of new building codes, approximately $4,500.00. The necessary copies of the five core 2015 I-
Codes have been purchased for staff.
2. Staff training on the new codes is mostly accomplished in-house. When possible, staff will attend code
classes that are offered at various times throughout the year. This additional training cost is expected not
to exceed $5,000.
3. Contractor training on the new codes and amendments. All Fort Collins licensed general contractors are
expected to be informed and knowledgeable in all newly adopted codes. To assist with this training, staff
offers a half-day class on the amendments and charges an enrollment fee sufficient to cover the cost of
expenses. This class will be scheduled for mid-year 2017.
BOARD / COMMISSION RECOMMENDATION
The 2015 I-Codes with proposed amendments were presented to numerous boards and commissions.
(Attachment 5) Although there was general approval of the codes as presented, repeated concerns heard
were the cost of codes or code creep. “Cost increases across the City are impacting the ability to provide
affordable housing”. “Building codes should remain focused on the life, health, and safety aspects of
construction and avoid sustainable requirements”.
PUBLIC OUTREACH
The 2015 I-Codes were also presented to:
Northern Colorado Home Builder Association
Chamber of Commerce
Board of Realtors
ATTACHMENTS
1. Code Review Committee (PDF)
2. Cost Estimates (PDF)
3. Dobson Letter and City Attorney response (PDF)
4. 2015 I-Code Review Committee minute excerpts re: vinyl siding (PDF)
5. Board and Commission feedback re: 2015 I-Code adoption (PDF)
6. Sustainability Assessment Summary (PDF)
7. Ordinance No. 072, 2017 (IBC) (PDF)
8. Ordinance No. 073, 2017 (IECC) (PDF)
9. Ordinance No. 074, 2017 (IRC) (PDF)
10. Ordinance No. 075, 2017 (IMC) (PDF)
11. Ordinance No. 076, 2017 (IFGC) (PDF)
Code Review Committee
ATTACHMENT 1
Section Description Cost Increase Cost Savings Notes
903.3.1.2 6 unit Residential buildings built
under the IBC can use 13R sprinklers
instead of 13 system
Approx 30‐50% Commercial apartment buildings are required to have a full NFPA 13 sprinkler system. If the
building is built similar to townhomes in the IRC the risk decreases and the building would be
allowed to use a less expensive type of fire suppression system. Cost assumes a 2 story, wood
framed, 6 unit building, and both materials and install. According to local fire suppression
companies, the biggest cost savings comes from not needing to sprinkle attics and similar
concealed spaces ‐esp. labor costs.
Section Description Cost Increase Cost Savings Notes
310.1 Habitable lofts and mezzanines now
require an egress window
$300 materials $300 labor
estimates
Many lofts function as bedrooms which require egress windows. Not all new homes will have lofts.
Cost range includes: U value of .32 for a standard stock double hung egress window, and does not
include labor and installation costs.
M1503.4 Removed Appliance BTU to CFM ratio
for hoods.
$270‐400 BTU ratio requirement would often require a hood to exhaust more than 400 cfm which triggers a
requirement for make‐up air. Changing this amendment to standard code allows for more flexibility
in appliance selection and eliminates the need for make‐up air for most hoods sized to
accommodate gas range/ovens. The savings accounts for a standard make‐up air kit only for an off‐
the‐shelf direct vent hood.
E3401.5 EV ready ‐vehicles $10 materials $100 with labor Cost range includes materials only, assuming the panel is located in or near the garage with 10ft of
1/2" conduit.
E3401.6 PV ready ‐solar $20 materials $200 with labor Cost range includes materials only, assuming a 25ft length of 3/4" conduit run in a straight vertical
path from the main level through the attic in a 2 story home.
IBC 2015 Local Amendments anticipated to have a cost impact on the customer
IRC 2015 Local Amendments anticipated to have a cost impact on the customer
http://www.homedepot.com/s/make%2520up%2520air%2520kits%2520for%2520range%2520hoods?NCNI‐5
https://www.lowes.com/search?searchTerm=make‐up+air+kit+for+hoods
Fort Collins Windows and Doors: single hung builder grade ‐off the shelf window ‐no install or framing around $200
https://www.lowes.com/pd/Metallic‐EMT‐10‐ft‐Conduit‐Common‐1‐2‐in‐Actual‐50‐in/3129551
From Platte Valley Fire Protection: ‐Based on 2 story 6,000 sf building and 1,000 sf per unit would be approx: $12,000 for 13R vs. $24,000 for NFPA13 or approx. 50% savings)
From Flow fire protection: Non Combustible Frame =10‐15% savings; Wood Frame=30‐35% savings
From Western States Fire protection: 30‐40% savings using 13R
References and Notes
Planning, Development & Transportation Services
Community Development & Neighborhood Services
281 North College Avenue
Fort Collins, CO 80524
970.416.2740
fcgov.com
ATTACHMENT 2
ATTACHMENT 3
Exhibit A
From: Tyler Marr [mailto:tmarr@fcgov.com]
Sent: Monday, September 12, 2016 5:38 PM
To: Gerry Horak <ghorak@fcgov.com>; Matt Dobson <mdobson@vinylsiding.org>
Cc: Mike Gebo <MGEBO@fcgov.com>; Tom Leeson <tleeson@fcgov.com>; Laurie Kadrich <lkadrich@fcgov.com>; Jeff
Mihelich <jmihelich@fcgov.com>; Darin Atteberry <DATTEBERRY@fcgov.com>; Tyler Marr <tmarr@fcgov.com>
Subject: Vinyl Siding and Fort Collins Ban (Council SAR #35554)
Mr. Dobson,
Thank you for your email to Mayor Pro Tem Horak regarding vinyl siding in the Fort Collins International Residential
Code and International Building Code. Please see the following response, provided by Chief Building Official Mike Gebo,
on behalf of the Mayor Pro Tem.
Kind Regards,
...............
Tyler Marr
Policy and Project Analyst
City of Fort Collins
tmarr@fcgov.com
----------------------------------------------------------
Mr. Dobson,
In February of 2014 Council approved the adoption of the 2012 International Building Codes with local amendments.
One such amendment removed the use of Vinyl and Polypropylene siding materials. The amendment was brought
forward after two multi-family fires the year before. Both fires were external in origin, causing the vinyl siding to melt
away exposing the sub-sheathing, allowing the vertical spread of flames which easily breeched the vinyl covered soffit
and into the attic, causing the loss of 12 apartments destroying all contents, displacing 12 families, and costing
$500.000.00 in repairs to each building.
The City's code review committee is currently reviewing the next edition of building codes the 2015's. All local
amendments will be presented to various boards and commissions seeking their comments and feedback and will
include pubic outreach. Once vetted the proposed codes and amendments will be presented to the Council for their
review and adoption sometime in the first quarter of 2017. Staff will specifically discuss with Council the amendment
addressing vinyl siding products among a number of items for their consideration.
4
-Mike Gebo
-----------------------------------------------------
Original Request
Darin
Please provide information and response.
Thanks
Gerry
Gerry Horak
Mayor Pro Tem
Councilmember
District 6
ghorak@fcgov.com
217-2993
123 North Mack Street
Fort Collins, CO 80521
With limited exceptions, emails and any files transmitted with them are subject to public disclosure under the Colorado Open Records
Act (CORA). To promote transparency, emails will be visible in an online archive, unless the sender puts #PRIVATE in the subject line
of the email. However, the City of Fort Collins can’t guarantee that any email to or from Council will remain private under CORA.
________________________________________
From: Matt Dobson [mdobson@vinylsiding.org]
Sent: Friday, September 09, 2016 9:35 AM
To: Gerry Horak
Cc: Mike Gebo; Bob Poncelow; Rath, Manesh
Subject: Vinyl Siding and Fort Collins Ban
Dear Councilman Horak:
In late May, we met with the Building Review Board (BRB) to request vinyl siding and polypropylene siding be reinstated back into the
Fort Collins’s International Residential Code (IRC) and International Building Code (IBC). We were told that this decision to Ban vinyl
siding in your codes was based on two or three apartment fires that occurred several years ago.
Our case, as presented to the BRB, is based on scientific evidence and the fact that our industry’s products have been thoroughly
vetted as safe and are recognized in ICC’s consensus-developed I-Codes. During the May meeting we provided extensive information to
address fire safety concerns that were cited as contributing factors to the vinyl siding Ban in Fort Collins.
Here’s a brief recap of the information discussed:
• Vinyl siding has been safely used across the U.S. for well over 50 years
• Vinyl as a material was originally introduced because of its inherently flame retardant chemistry
• 1 of 3 homes built use vinyl siding; it is the most popular cladding in the U.S. and has been for over 20 years
• To my knowledge, Fort Collins is the only jurisdiction in the U.S. to Ban vinyl siding in their building code
• The fire incidents cited were not caused by vinyl siding; rather, vinyl siding was consumed in the fire just as other building materials
• Vinyl siding is currently used safely and effectively on hundreds (if not thousands) of homes and apartments in Fort Collins
For more in-depth information on vinyl siding’s fire safety properties and I-Codes recognition, please refer to the enclosed (attached)
Siding with Safety and How the I-Codes Regulate Vinyl, Polypropylene and Insulated Siding documents.
We formally request vinyl siding and polypropylene siding to be reinstated in Fort Collins’s building codes (IRC, IBC) for two primary
reasons – to allow the open market to drive product specification; and the explanations cited for the Ban are unjustified and refuted by
scientific evidence and ICC model code recognition, thereby singling out vinyl for disparate treatment as compared to other building
materials that are also consumed in fires.
We additionally request documentation of all evidence that the BRB and City Council relied upon in arriving at its determination that
vinyl siding, along with polypropylene, should be treated disparately from all other cladding materials.
Thank you in advance for your consideration. We are happy to set up another meeting to discuss this issue further.
Regards,
Matt Dobson
VSIVicePresident,Code&Regulatory
Member, National Fire Protection Association
Member, Fire Safety Code Development Committee for the Development of the International Building Code
Cc: Manesh Rath, Keller and Heckman LLP
5
Mike Gebo, Building Official, City of Fort Collins
Bob Poncelow, Division Chief, Poudre Fire Authority
Exhibit B
Exhibit C
Exhibit D
City Attorney
300 LaPorte Avenue
PO Box 580
Fort Collins, CO 80522
970.221.6520
970.221.6327 - fax
fcgov.com
May 12, 2017
Mr. Manesh K. Rath
Keller and Heckman LLP
1001 G Street, NW, Ste. 500W
Washington, D.C. 20001
Via email: Rath@klaw.com
Re: Response to February 7, 2017 Letter Titled: “Review of Administrative Process in
Revoking §1404.9, 1404.12, R703.11, and R.703.13”
Dear Mr. Rath:
Our office is in receipt of your February 7, 2017 letter to The Honorable Wade Troxell,
Mayor of the City of Fort Collins, and other City officials, on behalf of the Vinyl Siding Institute
(VSI) regarding the City’s decision to ban the installation of vinyl siding and polypropylene
siding on new buildings within City limits in its currently-adopted International Building Code
(“IBC”) and International Residential Code (“IRC”).
The City has broad authority to regulate building and construction standards and
currently regulates building and construction standards, in part, by administering and enforcing
the 2012 IBC and IRC, with local amendments to the codes. See, City Code §5-26; §5-30.
City is currently in the process of replacing the 2012 IBC and IRC with the 2015 IBC and
IRC, including local amendments (the “2015 I-Code Amendments”). It is anticipated that City
Council will consider the 2015 I-Code Amendments in June of 2017 and, in accordance with
City’s charter and applicable law, the amendments will be considered at two separate, regularly
scheduled, City Council meetings that are open to the public. See Generally, §31-16-106 C.R.S.;
City Charter, Art. II, §6-7. Any member of the public can address the City Council and provide
comments on the 2015 I-Code Amendments. See, City Code §2-30.
City’s Chief Building Official is no longer proposing a complete ban on the installation
of vinyl siding on new construction in the 2015 I-Code Amendments and is currently proposing
City adopt 2015 IBC §1404.9; 1404.12 and 2015 IRC §703.11, §703.13; §703.14 in their
entirety, along with additional local amendments that read as follows:0F
1
Section 1404.9.1 Vinyl siding on new buildings. Vinyl sidings on new buildings
shall be installed over one-hour fire-rated assemblies listed for exterior fire
exposure, in both the vertical and horizontal plane.
1 The City adopts the complete IRC and IBC by reference and so all strikethroughs and additions are tracked against
the 2015 IBC and IRC, rather than the 2012 IBC or IRC.
L
Re: Vinyl Siding Institute
5/12/17
Page 2 of 2
Section 1404.12.3 Polypropylene siding on new buildings. Polypropylene on
new buildings shall be installed over one-hour fire-rated assemblies listed for
exterior fire exposure, in both the vertical and horizontal plane.
Section R703.11.1.5 Vinyl siding on new buildings. Vinyl siding on new
buildings shall be installed over one-hour fire-rated assemblies listed for exterior
fire exposure, in both the vertical and horizontal plane.
Section R703.13.2 Insulated Vinyl siding on new buildings. Insulated vinyl
siding on new buildings shall be installed over one-hour fire-rated assemblies
listed for exterior fire exposure, in both the vertical and horizontal plane.
Section R703.14.3 Polypropylene siding on new buildings. Polypropylene
siding on new buildings shall be installed over one-hour fire-rated assemblies
listed for exterior fire exposure, in both the vertical and horizontal plane.
The above proposed amendments and the public process adopting the 2015 I-Code
Amendments addresses any concerns raised in your February 7, 2017 letter. However, the City
Council may still request a further review of the public health, safety and environmental impacts
of vinyl siding. As noted in the case law you provided, City may use its police power when it is
reasonably necessary to preserve and protect the public health, safety, and welfare. See,
Colorado Dog Fanciers, Inc. v. City and County of Denver, 820 P. 2d 644, 653 (CO 1994). Thus,
while the building official is proposing to adopt the above amendments to the 2015 I-Code
Amendments, the City Council will enact whatever amendments it eventually determines are
necessary to protect the public. If you have additional comments or concerns regarding the 2015
I-Code Amendments then the City encourages you to attend and participate in the City Council
meetings.
You can stay informed of any changes to the meeting dates for the 2015 I-Code
Amendments, and additional information related to the 2015 I-Code Amendments, at
http://www.fcgov.com/cityclerk/agendas.php. Also, be aware, that as the 2015 I-Code
Amendments are still in draft form, the above proposed amendments are subject to additional
change.
Sincerely,
Christopher Van Hall
Assistant City Attorney
Cc: Carrie Daggett, City Attorney; Judy Schmidt, Senior Assistant City Attorney; Brad Yatabe,
Assistant City Attorney; Laurie Kadrich, Director of Planning, Development & Transportation;
Tom Leeson, Community Development & Neighborhood Services Director; Mike Gebo,
Building Official
City of Fort Collins
2015 I-CODE REVIEW COMMITTEE
Excerpts from Meeting Minutes on Vinyl Siding
March 22, 2016
1404.9 – Vinyl siding. Vinyl siding association wants to attend for this discussion. The
City’s approach was that we would keep this amendment as currently amended.
April 5, 2016
Vinyl Siding
o The Vinyl Siding Association has not expressed further interest in attending any
of our meetings. We have not had support for bringing vinyl siding back as an
available siding option. We will not be regulating for re-siding, although we may
look at multi-family instances.
May 3, 2016
Gebo outlined the plans for the upcoming meetings:
May 31st:
1) Visit from vinyl siding representative
May 31, 2016
Vinyl Siding Presentation
Matt Dobson from the Vinyl Siding Association provided the group with information about
vinyl siding. He specifically addressed combustibility, which is of particular concern to
the group. He explained that vinyl siding does not sustain a flame, but will melt and fall
away from the building, and noted that polypropylene siding will sustain and fuel a flame.
He also explained that the flame spread is slow with a combination of vinyl siding and
polystyrene insulation, however he did add that insulated siding puts off quite a bit of
smoke. He pointed out that according to code, vinyl siding is allowed to be used in an
integrated assembly, commenting that combustibility is more dependent upon what
material is under the vinyl. Mr. Dobson stated that Ft. Collins is the only jurisdiction in
the country to ban the use of vinyl siding.
Committee members discussed whether vinyl siding could be allowed with certain
restrictions, such as a protective or traditional soffit requirement, a fire block at the wall
assembly or with gypsum board sheathing under the vinyl, and whether such restrictions
would be so severe that no one would use it anyway. Hovland pointed out that if
weather-protected, fire-rated drywall were underneath, it could be engineered so that
either vinyl or polypropylene would be acceptable. Gebo didn’t think it was feasible to
ATTACHMENT 4
allow vinyl with 5/8” gypsum board/sheetrock behind it. Some members questioned
whether feasibility in relation to costs was relevant to this discussion.
Gebo will find out whether other jurisdictions have special requirements for vinyl. It was
noted that the Land Use Code doesn’t address or restrict vinyl, but it also isn’t listed as a
“high quality material”. Gebo clarified that vinyl can be used for remodels and additions,
both residential and commercial, just not new construction.
Gebo will research flame and smoke spread on OSB siding. Hovland noted that OSB
siding has a Class C flame spread rating.
Poncelow commented that vinyl doesn’t offer protection and contributes to the speed of
the spread. He added that PFA would not like to see vinyl allowed again without some
kind of protection behind it.
Gebo was asked whether there had been any pushback on the vinyl ban, and he
responded that there had not, and it had not been an issue. He said that the code had
served its purpose. The group also discussed that vinyl siding would be an unusable
product anyway, because it didn’t meet the wind speed requirement. Hovland said that
according to the new code, vinyl siding can’t be installed where the wind speed is more
than nominal 100, which is the same as ultimate 130. Since ultimate 130 is what will
likely be adopted, vinyl siding would be meet the requirement.
Gebo said he will work on this and come back to the group with some options.
Zarembinski suggested addressing soffits in more detail later because of how they
contribute to fire spread.
June 28, 2016
Section R703.11, Vinyl siding. No changes to amendment.
November 1, 2016
Gebo said the vinyl siding representatives had contacted Council and that PFA will be
involved in that discussion.
December 13, 2016
Vinyl Siding
Schneider expressed concern about banning a specific product, and the potential for a
lawsuit against the City. He suggested specifying the safety requirements that must be
met if vinyl siding were used, rather than an outright ban of its use. Gebo pointed out
that the vinyl siding representative had talked about how to protect the structure with an
exterior rated sublayer when using vinyl siding, which helps to address the issue of the
fire rating. However, Gebo also expressed concern about how well vinyl siding would
hold up in this climate, and the installation costs to replace it even if the warranty
covered the actual materials. Schneider argued that wasn’t uncommon with building
materials, and shouldn’t fall within the life, health & safety goals of the building codes.
Steinbicker agreed, and suggested the fire safety issue was the best argument for
excluding the product.
Gebo clarified that he was addressing the sustainability of the product. Raeker said from
a sustainability perspective, he is more concerned that vinyl siding is non-recyclable due
to its added materials (or doping). Gebo said vinyl siding seems more susceptible to
damage from a hail event than other materials.
Hovland said adding a layer of gypsum would solve the problem, but wasn’t cost
effective, so no one would use it. Drennen suggested making the fire safety
requirements for using vinyl siding so stringent that it would not be economical to use.
Tschetter agreed that the fire rating issue is a much more defensible argument against
vinyl siding.
Cram said that either using an exterior grade sheetrock, or a fire-resistant coating, under
the siding should be required, but the soffit issue must also be addressed. Gebo said
we need to specify that any time vinyl is used it would require another product
underneath. Steinbicker noted that fire would spread through venting. Doddridge
suggested that the soffit must meet a specific fire rating and leave it to the contractor to
figure it out. Gebo mentioned combustible decks, and said the code would need to
address the majority of surfaces where vinyl could be used.
Doddridge asked whether the ban applied to vinyl siding replacement. Gebo said the
code is crafted for new buildings and doesn’t regulate replacement.
Steinbicker pointed out that vinyl siding is already excluded in the current code, so
absent a clear and convincing argument it should be left as is. He said the PFA’s fire
safety concerns regarding vinyl siding, and the construction challenges surrounding
using it safely, should be relied upon to support the argument against it.
Gebo called for a vote as to whether to keep the ban in place. The committee voted
16:4 in favor of the ban.
Hovland explained he had voted “no” because it would be fine to allow vinyl siding if
there were a requirement for fire-resistant material under the siding. Gebo said he didn’t
believe that would address all of the safety concerns. Gebo said he prefers to leave the
vinyl ban in place, and if Council has concerns, staff will have to draft some safety
requirements for its use between the first and second reading.
Schneider suggested limiting its use to single family detached homes and requiring a fire
barrier. He also recommended having Brad Yatabe at the City Attorney’s office look into
it, since other municipalities have been sued for banning specific products.
Gebo decided to present Council with the following options regarding vinyl siding:
1. Leave the ban as is, eliminating it on new buildings.
2. Allow it only for single family detached homes, with a required fire barrier.
3. Allow it in any building, with a required fire barrier.
Gebo clarified that replacing vinyl siding on buildings that currently have vinyl siding
wasn’t addressed in the code, and said he could add that as an exception. He also
noted that this code is applicable to both vinyl and polypropylene siding.
There was a brief discussion about cost implications and whether insurance costs would
be higher if using vinyl, which may offset the savings of using the vinyl.
Steinbicker asked whether the same restriction has or would be placed on any other
product that is able to burn on the outside, such as wood. Gebo explained that vinyl is
unique in that it melts away, exposing the OSB and allowing fire to travel into the soffit.
Social Sustainability
321 Maple Street
PO Box 580
Fort Collins, CO 80522
970.221.6758
The City’s Chief Building Inspector Mike Gebo presented the 2015 International Building Code
updates and local amendments to the Affordable Housing Board at their February 2, 2017 regular
meeting. Based on this presentation, the Affordable Housing Board has the following
recommendations and concerns:
• The Board recommends approval of the code updates and local amendments.
• Having said that, the Board is generally concerned about increased fees and costs
associated with code updates and points out that this update will add to the cost of
residential building in our City.
• Specifically, the requirement that housing be built ready for installation of photo voltaic
and electronic charging for vehicles adds cost to build single family homes and is not an
immediate health and safety feature. For that reason, the Board would like Council to
consider providing rebates of the cost to install the EV and PV features for qualified
affordable housing developments.
MEMORANDUM
DATE: February 9, 2017
TO: Mayor and City Councilmembers
CC: Darin Atteberry, City Manager
FROM: Affordable Housing Board
Diane Cohn, Chairperson
RE: 2015 INTERNATIONAL BUILDING CODE UPDATES AND LOCAL
AMENDMENTS
ATTACHMENT 5
Building Review Board Page 1 January 26, 2017
Alan Cram, Chair City Council Chambers
Michael Doddridge, Vice Chair City Hall West
Andrea Dunlap 300 Laporte Avenue
Tim Johnson
Bernie Marzonie
Justin Montgomery
Fort Collins, Colorado
Rick Reider
The City of Fort Collins will make reasonable accommodations for access to City services, programs, and activities
and will make special communication arrangements for persons with disabilities. Please call 221-6515 (TDD 224-
6001) for assistance.
Regular Hearing Minutes - EXCERPT
January 26, 2017
A regular meeting of the Building Review Board was held on Thursday, January 26, 2017, at
1:00 p.m. in the Council Chambers of the Fort Collins Municipal Building at 300 Laporte Avenue,
Fort Collins, Colorado.
Board Members Present: Alan Cram, Chair
Mike Doddridge, Vice Chair
Andrea Dunlap
Justin Montgomery
Tim Johnson
Bernie Marzonie
Rick Reider
Absent: None
Staff Present: Mike Gebo, Chief Building Official
Cindy Cosmas, Administrative Assistant
*** EXCERPT FOR 2015 Proposed IBC Amendments***
3. 2015 Proposed IBC Amendments
Gebo provided a detailed update of the International code amendments that are being
considered, including the commercial and residential codes, excluding plumbing and electrical,
which is done at the State level. He explained how the amendments were determined, which
Building Review Board
Minutes
Building Review Board Page 2 January 26, 2017
was the result of a committee effort during the majority of 2016. He also discussed the process
used, called the “Plan Do Check Act” system, which has been endorsed by the City of Fort
Collins. Overall, he doesn’t feel that a large number of changes are being proposed, and he
detailed several of the changes for the Board. He had positive input from the community on the
work by the committee, adding that this will be heard by City Council on March 7th (first reading)
and then on March 21st (second reading). The Board asked several clarifying questions on
related topics (insulation requirements, impacts of lighting control work, and asbestos
regulations). Doddridge also pointed out that the reviewing committee was sometimes split in
their opinions of how some of the codes should be amended.
Cram made a motion, seconded by Dunlap, to support the adoption of the 2015
International codes. Vote: 7:0.
*** END EXCERPT FOR 2015 Proposed IBC Amendments ***
The hearing adjourned at 2:44pm.
_____
Mike Gebo, Chief Building Official Alan Cram, Chair
Fort Collins Area Chamber of Commerce
Local Legislative Affairs Committee
January 13, 2017
Minutes
Present: Michael Bello, Sean Dougherty, Jason Ells, Carrie Gillis, Bob Gowing, Nick Haws,
Brian Hood, Eric Lea, Brian Mannlein, Holly Tarry, Ralph Waldo, Greg Woods, Marie
Zimenoff, David Zwisler.
Absent: Valerie Arnold, Mike Brown, Bob Carnahan, Pete Gazlay, Brandon Grebe, Steve
Lucas, Cathy Mathis, Angela Milewski, Joe Rowan.
Staff: David May, Ann Hutchison, Kevin Jones.
Guests: Mike Gebo, City of Fort Collins; Dan Betts, Office of US Senator Cory Gardner;
Laurie Kadrich, City of Fort Collins; John Phelan and Brad Smith, Fort Collins
Utilities.
I. Chair Brian Mannlein called the meeting to order at 7:30am.
II. Building Code
Fort Collins Chief Building Officer Mike Gebo provided an overview of possible
applications of the 2015 International Buildings Codes. The International Building
Codes establish minimum construction standards for public health and safety
including regulations for structure, sanitation, light, ventilation, conservation and
property protection.
Questions asked by LLAC included: How much money does the change in the fire
sprinkler code on six unit residential projects save the builder, who defines dark sky,
how much will it cost to make new homes solar ready, what is the timeline on the
code changes, is the city’s electronic submission process CAD or PDF, where do the
green codes fit in, what are the overall cost changes to the builder, is there an effort
under way to replace street lights for dark sky, is there a cheaper interim approach
that can be used while the city does its multi-year phase-in of LED street lights, will
the study of the incremental costs of building include input from the private sector,
will big land tract projects be included in the study process, when will the draft
ordinance be ready.
City Clerk
300 LaPorte Avenue
PO Box 580
Fort Collins, CO 80522
970.221.6515
970.221-6295 - fax
fcgov.com/cityclerk
DATE: 28TFebruary 16, 2017
TO:28T City Council through Michael Gebo, Chief Building Official
FROM: 28T Terry Schlicting, Chair Commission on Disability
RE:28T 2015 International Codes and local amendments
In recent years, an issue that has been brought to our attention numerous times is the
availability, or lack thereof, of housing for community members with disabilities -- specifically,
the absence of apartments or condos with roll-in shower access. Current building codes do not
require new structures to incorporate accessible showers or bathrooms into their designs. For
individuals who have limited mobility and rely on personal care attendants for their activities of
daily living, a roll-in shower is vital for the independence and safety of community members
who use wheelchairs.
As things currently stand, my experience has been, as a wheelchair user myself, that landlords
will modify a unit at the cost of the renter, which can run thousands of dollars, and is an undue
cost for most community members with disabilities. Subsequently, landlords are requesting
that when the renter leaves, that individual pay to have the unit put in its original state,
creating additional financial challenges on an often already burdened population.
The Commission on Disability has had dialogue multiple times with the Building Review Board.
They state they are supportive of modifying the building code, but we have yet to see any
change for over a year now. Meanwhile, we see multiple building projects around Fort Collins
going up with little access or consideration for individuals with disabilities. As this issue stays
tabled, the options for a growing population of wheelchair users stay extremely limited – nearly
nonexistent.
The Commission on Disability asks that City Council put this issue at the forefront of community
priorities. We request local building codes be modified, requiring at least 1 roll-in shower per 26
units in new multi-unit dwellings, for structures of greater than 25 units. With a dimension of 4
feet wide and 5 feet long, the reason being that most wheelchairs have a total length of just
under five feet, and a width of approximately 3 feet. The extra foot is pertinent because most
individuals in wheelchairs need assistance, and the extra foot allows for the access of support
by a care attendant (please see attached from a local care attendant statement regarding
current accessible showers/ bathrooms).
We at the COD feel that this is a reasonable request given that we do not ask that any existing
structures or buildings be retrofitted, rather that this modification be included in future
building code requirements. Adding this requirement will alleviate a huge deficit in the
availability of accessible housing, and create an environment that fosters independent living
and engagement for community members with limited mobility. We feel that this issue is not
one of convenience, but of inequity in access.
28TRespectfully,
28TTerry Schlicting
28TCommission on Disability, Chair
Fort Collins Commission on Disability
February 15, 2017
Re: Reasonable Accommodation
To Whom It May Concern:
My name is John Morris and I am a C-4 Quadriplegic, paralyzed from the neck down, since December
2005. I am a qualified individual with a disability, as defined by the Fair Housing Amendment Act of
1988 and Section 504 of the Rehabilitation Act.
I was born and raised in Fort Collins, CO and have grown very fond of this community. However, this
community has put me in a tough situation due the absence of apartments or condos with roll-in shower
access. In order for me to shower, I need full assistance from a caregiver. With the current IBCs for Fort
Collins accessible showers, most dwellings offer a 3’x3’ roll in shower, which is also considered in the
ADA Accessibility Guidelines. In my opinion, as well as my fellow wheelchair community, we feel these
dimension are inadequate to shower and can place caregivers at risk for injury.
The 3’x3’ shower dimensions have made it harder to access the shower or properly angle oneself. These
dimensions limit the size of one’s shower chair, which can leave extremities exposed. Also, with these
current dimensions, I am putting my caregivers at risk to slip and fall because of the amount of water that
brakes the water dam and rushes out on to the bathroom floor (I have attached a picture of my current
shower situation at my apartment located in Fort Collins and picture of my former residence that was
done by a Medicaid contractor).
Here is a statement from my current caregiver:
“ My name is Arianna Kilmer, I have been providing care to John Morris for over 4 years now. In this
time, I have cared for John at his prior residences where we used a 5’x 4” shower with ease and now his
current apartment where his shower has caused much pain and illness. John’s pain is caused not only by
his Spinal Cord Injury but being exposed to the cold air while he showers. These two factors make his
muscles extremely tight, which cause uncontrollable muscle spasms and pain.
Another issue that I have taken notice to, are taller individuals like John have their legs half way exposed
out of the shower with these 3’x3’ dimensions. You can see this in the pictures that are attached. Not only
is this harmful for John and puts him at risk for illness, but I am trying to squeeze between his chair and
the wall to provide assistance which causes a huge risk for falling. By increasing the dimension to 5’x 4’
in the IBC, I believe you will see a mitigation in injury for individuals with disabilities and a reduction in
accidents for care providers.”
Thank you for your consideration,
John Morris
COMMISSION ON DISABILITY
Fort Collins City Hall: Council Information Center 12:15 p.m.
Thursday, January 12th, 2017
Present: Marilee Boylan, Leslie Efird, John Morris, Rustin Hughes and Jan Barela-Smith
Absent: Hettie Hueber and Michael Marr, Terry Schlicting, Sherri Reichow
City: Ali Recio, Christine Macrina
Guests: Arianna Kilmer, Mike Gebo
Call to Order: 12:17 p.m.
*** Begin excerpt for the 2015 Building Code & Local Amendments ***
4. New Business:
Mike Gebo, Chief Building Official, gave a presentation about the IBC code changes that he is
hoping to have put in place for the City of Fort Collins. In interest to the COD Gebo is asking
the City Council for one roll-in shower for every 26 new build units increasing the number
from the former of 51 to be approved. Gebo would like the COD’s support on this
change. The COD asked for more information on the size and details for the roll-in shower.
This information will be gone over at the February meeting and the COD will decide at that
time if support will be given.
Approval will need to be given by March 7th. The commission also discussed with Gebo
future changes that could be made to the codes. After Gebo excused himself from the
meeting, discussion went on about tax incentives for improving new build accessibility.
*** End excerpt for the 2015 Building Code & Local Amendments ***
Energy Board Minutes
January 12, 2017
Fort Collins Utilities Energy Board Minutes (ABRIDGED)
Thursday, January 12, 2017
Energy Board Chairperson City Council Liaison
Pete O’Neill, 970-223-8703 Ross Cunniff, 970-420-7398
Energy Board Vice Chairperson Staff Liaison
Nick Michell, 970-215-9235 Tim McCollough, 970-305-1069
Roll Call
Board Present: Chairperson Pete O’Neill, Vice Chairperson Nick Michell, Alan Braslau, Bill Becker,
Greg Behm
Late Arrivals: Margaret Moore, Lori Nitzel, Stacey Baumgarn
Board Absent: Phil Friedman
Others Present
Staff: Tim McCollough, Christie Fredrickson, Adam Bromley, Lindsay Ex, Lucinda Smith, Mike Gebo;
John Phelan
PRPA: Paul Davis
Members of the Public: Rick Cohen
2015 Building Code and Local Amendments Overview
Mike Gebo, Chief Building Official
(attachments available upon request)
Mr. Gebo introduced the Board to the 2015 edition of the International Codes that fall within the City’s
jurisdiction. The five codes that the City adopts are: 2015 International Building Code (IBC), 2015
International Residential Code (IRC), 2015 International Mechanical Code (IMC), 2015 International
Fuel Gas Code (IFGC) and the 2015 International Energy Conservation Code (IECC). The 2015
International Codes represent the most up-to-date building codes. These codes establish minimum
construction standards to safeguard the public health, safety and welfare by regulating structural strength
and stability, sanitation, light and ventilation, energy conservation and property protection. The codes are
developed on through the International Code Council (ICC) on a three year cycle. The City is currently
working under the 2012 edition and working to adopt and move forward with the 2015 edition.
Mr. Gebo recognizes new codes often drive up the cost of construction, so he set up a review committee
that consists of construction and trade professionals (both residential and commercial), including
engineers, contractors, designers, Poudre Fire Authority as well as Utilities and Building Services staff.
The committee reviewed work from March 2016 through December 2016, evaluating changes and local
amendments. The review committee voted unanimously in support for the amendments as presented. The
City also has a Plan-Do-Check Act (PDCA) process; the City planned by reviewing and adopting the
2012 codes, and now they will come back to check and act by reviewing what did and didn’t work in the
last local amendments.
Mr. Gebo highlighted a few key changes in the IBC, IRC and Energy Codes. Some of the changes in the
IBC codes included the allowance of NFPA (National Fire Protection Association) 13R fire sprinkler
systems in small, multi-family buildings, requiring building-mounted light fixtures to be Dark-Sky listed,
1
Energy Board Minutes
January 12, 2017
Energy Board Minutes
January 12, 2017
and potentially providing options for use of banned vinyl siding. IRC code changes included permit
exemptions for storage sheds (as long as they are three feet from the property line), habitable lofts need to
have an emergency escape window, and all new homes must be PV and EV ready. The 2012 IECC
edition and amendments were considered a great improvement over the 2009 edition of the IECC, so as a
result, there were no reductions in local amendments from the 2012 edition, and the edits were to provide
clarity and reinforce the 2012 amendments.
Mr. McCollough asked about the conduit size that would be installed in new construction homes
equipped to be EV ready. Mr. Gebo advised they will recommend at least a 30 Amp/240 Volt, but he
needs to do additional research on the size of the conduit. Mr. McCollough offered to assist by asking the
Light & Power staff for their recommendation after the meeting. He also asked Mr. Gebo if there is any
consideration put into southern exposure rooftops with regards to solar panel installation and rooftop
penetrations, such as vents. Mr. Gebo said the code is intended to guide the user to find the most likely
source and the most use of the panel surface, and noted these are minimum standard codes
Board member Behm asked about Mr. Gebo’s definition of PV ready. Mr. Gebo said he tries to consider
what the home owner would think as “PV or EV ready.” He thinks some homeowners may think that
phrase implies they can just turn it on, which is not the case—it’s simply PV or EV prepped with conduit,
and the homeowner will still be responsible for panels or charging station, etc. This is clearly explained
within the code itself.
Vice Chairperson Michell asked about the cost of the PV and EV code modifications because they may
not always apply to every house. For example, Mr. Michell’s home is shaded the majority of the day, so it
does not make sense for his home to be PV ready because it would not make sense to install or use PV
panels. Mr. Gebo said a situation like Mr. Michell’s would be handled through a variance process; he
explained that he can’t write a code for every nuance, so the code is written generically, at a minimum
standard, to cover the bulk of homes.
Mr. Gebo said he attempted to highlight the pertinent and key updates to the codes, and is requesting a
recommendation from the Board.
Chairperson O’Neill moved the Energy Board recommends adoption of the 2015 building codes
with local amendments.
Board member Moore seconded the motion.
Board Member Behm made an amendment to correct the motion to use the language presented in
the AIS, “The Energy Board recommends that City Council adopt the 2015 International Codes
and local amendments.”
Vote on the Motion: It passed unanimously, 8-0, with 1 absence
2
Energy Board Minutes
January 12, 2017
Environmental Services
215 N. Mason
PO Box 580
Fort Collins, CO 80522
970.221-6600
970.224-6177 - fax
fcgov.com
MEMORANDUM
NATURAL RESOURCES ADVISORY BOARD
DATE: 2/2/2017
TO: Mayor and City Council Members
FROM: John Bartholow, on behalf of the Natural Resources Advisory Board (NRAB)
SUBJECT: 2015 International Building Code and Local Amendments
At the regular meeting of the Natural Resources Advisory Board on January 18, 2017, staff
provided NRAB with an overview of the 2015 International Building Code and the
recommended Local Amendments and responded to questions raised by NRAB.
NRAB members acknowledged our lack of detailed knowledge on many aspects of the Code and
expressed some reluctance to recommend the entire Code without greater understanding and
expertise. However, the NRAB unanimously recommends to Council the inclusion of the
following aspects of the 2015 International Building Code and Local Amendments:
• the Energy Conservation Code (IECC),
• Dark Sky provisions,
• inclusion of conduits for future photovoltaic (PV) systems,
• empty conduits from garage to the main electrical panel for future electric vehicle
charging,
• continuation of low VOC requirements,
• construction waste provisions,
• encouragement of additional allowances for gray water systems, and
• increasing awareness and education of asbestos issues.
Nothing contained in our recommendation is intended to negate other provisions of the proposed
Building Code, but simply NRAB’s lack of sufficient knowledge concerning the remainder of
the 2015 International Building Code and Local Amendments.
We are pleased to see the cross-fertilization among City departments and programs to achieve
progress on the Road to 2020 and conservation efforts.
cc: Darin Atteberry, Katy Bigner, Mike Gebo
1 | Page
MINUTES - EXERPT
CITY OF FORT COLLINS
NATURAL RESOURCES ADVISORY BOARD
Date: Wednesday, January 18, 2016
Location: Colorado River Room, 222 Laporte Ave.
Time: 6:00–8:30pm
For Reference
Bob Overbeck, Council Liaison 970-988-9337
Katy Bigner, Staff Liaison 970-221-6317
Board Members Present Board Members Absent
John Bartholow Ling Wang
Elizabeth Hudetz
Nancy DuTeau
Luke Caldwell
Katherine de Leon
Drew Derderian
Bob Mann
Staff Present Staff Absent
Katy Bigner, Staff Liaison, Environmental Services
Mike Gebo, Chief Building Official
Bonnie Pierce, Environmental Regulatory Specialist
John Stokes, Natural Areas Director
Carol Webb, Water Resources and Treatment Operations Manager
Jen Shanahan, Natural Resources Watershed Specialist
Adam Jokerst, Water Resources Engineer
Guests:
David Tweedale, Land Conservation and Services Board
Mike Pruznick, Citizen
Gary Wockner, Save the Poudre
Mark Easter, Save the Poudre
Tim Johnson, Citizen
Heather Bartmann, Citizen
Donna Braginetz, Citizen
Richard (Dick) Livingston, Citizen
Doug Swartz, Save the Poudre
Call meeting to order: 6:01pm
Agenda Review: No changes
***EXCERPT for AGENDA ITEM 1— 2015 Building Code and Local Amendments***
AGENDA ITEM 1— 2015 Building Code and Local Amendments
Mike Gebo, Chief Building Official, provided an overview of the 2015 City Building Code and Local
Amendments.
2 | Page
Mike went over the 5 categories of building code that the City of Fort Collins adopts: Building
(specific to commercial buildings), Residential (single-family), Mechanical, Fuel Gas, and Energy
Conservation.
These construction standards are updated every 3 years; there have been 14 code adoptions thus far.
From March to December, a select team of experts from a variety of fields review construction
projects and revise past codes based on guidance from the City Council. There was unanimous vote
in favor of adopting these new amendments.
Mike described the Plan-Do-Check-Act (PDCA) method that his team uses to test and revise code
provisions.
Changes to International Building Code (IBC) are mostly edits for clarity. Other changes include the
movement of the “Fire Containment” section to the IBC, allowing the Fire Department to fight
smaller fires and included further detail of building use and square footage; the lowering of sprinkler
system requirements for smaller multi-family buildings from the full 13 to 13R; and a new
requirement for all commercial buildings to use dark-sky lighting methods on mounding lights. The
Code update in 2012 banned vinyl siding on buildings due to fire hazards, and although the vinyl
siding industry was not pleased with the ban, the committee proposes to continue the ban while
considering compromises such as adding sheet rock behind vinyl.
Changes to International Residential Code include enforcing a 3-foot boundary between small sheds
and property lines to reduce fire hazards between sheds; a requirement for habitable loft spaces in
homes to have a fire escape option; an adjustment to exhaust policies for gas cooking appliances; and
establishing PV ready and EV ready homes.
Other considerations by the committee include gray water systems, asbestos awareness, and public
outreach.
Going to City Council March 7, with a second reading on March 21. Staff is requesting Board
support.
Discussion/Q&A:
• What is grey water; can it be used for landscape?
o Grey water is the process of collecting used water from washing machines, showers, and
sinks, and recycling it through a cleaning process for further use. It can be used for
landscape and flushing, but it still needs to be treated for a period of time.
• Do older buildings need to meet the new code, or are they grandfathered in? How do you
determine which buildings must meet this new code?
o All new buildings need to meet code. Old buildings only need to meet the new code upon
remodeling or a change of occupancy type, such as from a residence to a restaurant.
• Are there any codes related to landscaping and/or irrigation?
o Only the requirement that the collection of rainwater and the irrigation systems in a
landscape must be 5 feet from the building.
• Are there any codes referencing the sub-metering of multi-family dwellings?
o No, that topic is specific to utilities.
• Bob suggested that the NRAB only has expertise on two sections of the Building Code, and
therefore does not feel it is appropriate for the Board to make a motion.
• Nancy proposed that the NRAB write a letter to City Council about the specific amendments that
relate to the Board, such as grey water, EV, and dark sky initiatives.
Elizabeth moved and Drew seconded a recommendation to write a memo to City Council regarding
grey water, EV, dark sky, and other sections of the Building Code amendments that are most relevant
to the interests of the NRAB.
Motion passed unanimously, 7-0-0.
ACTION ITEMS: Bob Mann will draft the memo to Council.
***END EXCERPT for AGENDA ITEM 1— 2015 Building Code and Local Amendments***
NOCO HBA - BOARD OF DIRECTORS MEETING – MINUTES – EXCERPT 01/03/2017
1
ATTENDANCE:
Alan Strope, Dan Ormesher, Brandon Myers, Tara Buckner, Doug Buer, Will Griffiths, Russ Henninger,
Blaine Rappe, Mitch Greeno, Walter Winslow
Excused: Steve Wick, Jen Ammerman, Dennis Pfeifer, Shawn Matz
Staff present: Greg Miedema, Janet Hatfield
Call to order: Chair Buckner called the meeting to order at 7:35:52, due to Greg and Janet’s LATE
arrival!
MINUTES: Minutes from 11-8-16 were approved as presented
*** EXCERPT for 2015 IBC***
Guest Presentation:
Mike Gebo, Fort Collins CBO, presented and discussed changes to the recently reviewed 2015 IBC (code
set). He noted broad participation and that he would be conducting outreach pursuant to a March 2017
adoption. This year’s review was described as moderate with no major changes.
Directors posed questions, which were answered sufficiently.
After the discussion, the BOD approved by unanimous vote, to support the adoption of the 2015 set of
codes by the City of Fort Collins.
***END EXCERPT for 2015 IBC***
POUDRE FIRE AUTHORITY
BOARD OF DIRECTORS MEETING
February 28, 2017
The Poudre Fire Authority Board of Directors met on February 28, 2017 at 8:30 a.m. at
102 Remington Street, Fort Collins, Colorado. Directors Mike DiTullio, Gerry Horak,
Kristin Stephens, Dave Pusey, and Darin Atteberry were present. Also present were
Fire Chief Tom DeMint, Budget and Finance Supervisor Kirsten Howard and Recording
Secretary Shawn Williams.
***Begin Excerpt fo the 2015 International Building Codes and Local Amendments***
Discussion Items
9. 2015 International Building Codes and Local Amendments
Tom DeMint introduced Mike Gebo, Chief Building Official, City of Fort Collins.
Mike Gebo presented a PowerPoint Presentation on the 2015 International Codes to be
adopted by the City of Fort Collins to keep up to date on the minimum standards of
construction to safeguard its citizen and businesses. Mike Gebo stated he works
closely with Bob Poncelow and his work on the adoption of the International Fire Code.
Kristin Stephens stated she appreciates Mike Gebo’s efforts and is in favor of
recommending the codes be adopted in order to not sacrifice on safety.
Gerry Horak made a motion to support Mike Gebo to pursue adoption of the 2015
International Codes and local amendments. Kristin Stephens seconded the motion.
The motion passed by a vote of 4-1 with Mike DiTullio voting no.
***End Excerpt fo the 2015 International Building Codes and Local Amendments***
Water Board Minutes 1
December 15, 2016
Fort Collins Utilities Water Board Minutes - EXCERPT
Thursday, December 15, 2016
Water Board Chairperson City Council Liaison
Rebecca Hill, 970-402-1713 Wade Troxell, 970-219-8940
Water Board Vice Chairperson Staff Liaison
Brett Bovee, 970-889-0469 Carol Webb, 970-221-6231
ROLL CALL
Board Present: Vice Chairperson Brett Bovee and Board Members Steve Malers, Phyllis
Ortman, Andrew McKinley, Duncan Eccleston, Lori Brunswig, Michael Brown, and Kent
Bruxvoort
Board Absent: Chairperson Rebecca Hill, Board Members Jason Tarry and Alexander Maas
Board members Michael Brown and Kent Bruxvoort joined the meeting at 5:34 p.m. during the
Board Member Recognition.
OTHERS PRESENT
Staff: Carol Webb, Kevin Gertig, Katherine Martinez, Mike Gebo, Jon Haukaas, Ken Sampley,
Shane Boyle
Members of the Public: None
Meeting Convened
Vice Chairperson Bovee called the meeting to order at 5:31 p.m.
***EXCERPT for 2015 Building Code and Local Amendments Overview***
2015 Building Code and Local Amendments Overview
(Attachments available upon request)
Chief Building Official Mike Gebo summarized proposed amendments to the 2015 international
codes and requested the board’s feedback and recommendation for approval of the 2015
Building Code and Local Amendments, which are going to City Council for adoption in March.
The codes are reviewed every three years and published by the International Code Council. The
five core building codes are the International Building Code, the International Residential Code,
the International Mechanical Code, the International Fuel Gas Code, and the International
Energy Conservation Code.
The 2015 codes represent the most up-to-date building codes; establish minimum construction
standards to safeguard public health, safety, and welfare; and regulate structural strength and
stability, sanitation, light, and ventilation, energy conservation, and property protection.
2
Water Board Minutes
December 15, 2016
Discussion Highlights
Board members commented on and inquired about various topics, including whether the vinyl
siding ban is local (Mr. Gebo confirmed that it is; adopted in 2012); reaction of the vinyl
industry association toward the City’s vinyl siding ban; whether anyone from water conservation
groups have approached Mr. Gebo about water sprinkler systems in relation to codes (no); and
how much of code drives the industry to energy efficiency; and whether the code committee was
unanimous in its support of proposed local amendments (yes).
Board Member Duncan Eccleston moved that Water Board express its support for the
water-related code changes and local refinements and also that the City consider rapid
adoption of graywater systems as they relate to the 2015 international plumbing codes.
Board Member Lori Brunswig seconded the motion.
Discussion of the motion: Board members discussed graywater issues and related Colorado State
University research; state statute allows local control for Cities to adopt ordinances (Ms. Webb
will research a draft of the model ordinance and steps to proceed with including this in City
Code; plumber liability issues, requirements in the ordinance that enacts the code, and questions
on ownership of the water. Ms. Webb stated she’ll talk with Water Conservation staff and bring
the information back to the board; state regulations on graywater exist. Board members
discussed delaying action on recommending approval of the proposed code changes until then.
Vote on the Motion: it passed 7 -1 with one nay (Board Member Ortman)
Reason for Nay Vote: Opposed until there’s a way to assess the City’s liability, which would
include the definition of graywater, whether it’s a combination of blackwater and graywater. Ms.
Webb replied the regulation’s graywater definition is strict; it does not include blackwater; and
stated staff would bring this issue to the board again.
***END EXCERPT for 2015 Building Code and Local Amendments Overview***
Adiournment
The meeting was adjourned at 7: 17 p.m.
Approved by the Water Board on January 19, 2016.
SUSTAINABILITY ASSESSMENT SUMMARY
DATE OF ASSESSMENT: 02/01/2017
SUBJECT: Sustainability Assessment (SA) Summary for 2015 Building Code Update
Key issues identified:
When compared to adjacent regions, we have an elevated code that values environmental
sustainability and part of the 2015 effort is to continue with the major environmental
sustainability aspects that were established in 2009 and 2012.
In this code update, enforcement and normalization of energy efficiency standards will contribute
to reduced energy use and fossil fuel dependency.
In particular, building to include EV/PV options provides broad-based access to energy efficiency
with fairly minimal increases in total construction cost (less than $150).
Some code support for handi-capable people, including triggering a requirement to provide
wheelchair accessible showers when units exceed 26 (rather than the previous standard of 56).
ADA compliance is achieved through close following of ICC standards which is a stand-in for
ADA.
Suggested mitigation actions:
• NA
Economic
0.4
Social
0.9
Environmental
1
Rating
Average, 0.8
-4.0
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
4.0
Sustainability Rating
Economic Social Environmental Rating Average
Rating Legend
3 Very positive
2 Moderately positive
1 Slightly positive
0 Not relevant or neutral
-1 Slightly negative
-2 Moderately negative,
impact likely
-3 Very negative, impact
expected
ATTACHMENT 6
- 1 -
ORDINANCE NO. 072, 2017
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5, ARTICLE II, DIVISION 2, OF THE
CODE OF THE CITY OF FORT COLLINS FOR THE PURPOSE OF
REPEALING THE 2012 INTERNATIONAL BUILDING CODE (IBC) AND
ADOPTING THE 2015 INTERNATIONAL BUILDING CODE, WITH AMENDMENTS
WHEREAS, since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS, upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS, the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2015 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed, both in order to align the publication years of the codes
and also because the 2015 publications contain improvements in construction code regulation;
and
WHEREAS, City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals; and
WHEREAS, the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS, the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its citizens that the 2012 International Building Code, as
previously adopted and amended by the City pursuant to Ordinance No. 020, 2014, be repealed
and that in its place, the 2015 International Building Code be adopted, with local amendments as
set forth in this Ordinance; and
WHEREAS, pursuant to the City Charter II, Section 7, City Council may enact any
ordinance which adopts a code by reference in whole or in part provided that before adoption of
such ordinance the Council hold a public hearing thereon and that notice of the hearing is
published twice in a newspaper of general circulation published in the City, with one of such
publications occurring at least eight (8) days preceding the hearing and the other publication
occurring at least fifteen (15) days preceding the hearing; and
- 2 -
WHEREAS, in compliance with Article II, Section 7, the City Clerk published in the Fort
Collins Coloradoan such notice of hearing concerning adoption of the 2015 International
Building Code on May 21, 2017, and May 28, 2017; and
WHEREAS, attached as Exhibit “A” and incorporated herein by reference is the Notice
of Public Hearing dated May 14, 2107, that was so published and which the Council hereby finds
meets the requirements of Article II, Section 7 of the City Charter.
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows:
Section 1. That the City Council hereby makes and adopts the determinations and
findings contained in the recitals set forth above.
Section 2. That Section 5-26(a) of the Code of the City of Fort Collins is hereby
amended deleted in its entirety and the following is hereby added in lieu thereof:
(a) Pursuant to the power and authority conferred on the City Council by Section 31-
16-202, C.R.S. and Article II, Section 7 of the Charter, the City Council hereby repeals
the 20092012 International Building Code (20092012 IBC), and adopts, as the building
code of the City, the 20122015 International Building Code (20122015 IBC) published
by the International Code Council, as amended by the City, which shall have the same
force and effect as though set forth in full herein. The subject matter of the codes adopted
herein includes comprehensive provisions and standards regulating the erection,
construction, enlargement, alteration, repair, moving, removal, conversion, demolition,
occupancy, equipment, use, height, area and maintenance of buildings and structures
exclusive of detached one- and two-family dwellings and multiple single-family
dwellings (townhouses) not more than three (3) stories above grade and their accessory
structures, for the purpose of protecting the public health, safety and general welfare. As
provided in the 2015 International Building Code, Appendices are not adopted except as
expressly set forth in Section 5-27.
Section 3. That Section 5-27 of the Code of the City of Fort Collins is hereby
repealed in its entirety and reenacted to read as follows:
Sec. 5-27. Amendments and Deletions to 2015 International Building Code.
The 20122015 INTERNATIONAL BUILDING CODE adopted in Section 5-26 is hereby
amended in the following respects:
(1) Section 101. Title is hereby retained in its entirety with the following amendments:
101.1. Title. These regulations shall be known as the General Building Code of the City
of Fort Collins, hereinafter referred to as ‘this code’.
(2) Sections 101.4.1through 101.4.7 Referenced codes, are hereby deleted in their entirety
and the following Sections 101.4.1 through 101.4.10 are hereby added in lieu thereof:
- 3 -
[A] 101.4.1 Gas. The provisions of the International Fuel Gas Code shall apply to the
installation of gas piping from the point of delivery, gas appliances and related
accessories as covered in this code. These requirements apply to gas piping systems
extending from the point of delivery to the inlet connections of appliances and the
installation and operation of residential and commercial gas appliances and related
accessories.
[A] 101.4.2 Mechanical. The provisions of the International Mechanical Code shall
apply to the installation, alterations, repairs and replacement of mechanical systems,
including equipment, appliances, fixtures, fittings and/or appurtenances, including
ventilating, heating, cooling, air-conditioning and refrigeration systems, incinerators and
other energy-related systems.
[A] 101.4.3 Plumbing. The provisions of the International Plumbing Code shall apply to
the installation, alteration, repair and replacement of plumbing systems, including
equipment, appliances, fixtures, fittings and appurtenances, and where connected to a
water or sewage system and all aspects of a medical gas system. The provisions of the
International Private Sewage Disposal Code shall apply to private sewage disposal
systems.
[A] 101.4.4 Property maintenance. The provisions of the International Property
Maintenance Code shall apply to existing structures and premises; equipment and
facilities; light, ventilation, space heating, sanitation, life and fire safety hazards;
responsibilities of owners, operators and occupants; and occupancy of existing premises
and structures.
[A] 101.4.5 Fire prevention. The provisions of the International Fire Code shall apply
to matters affecting or
relating to structures, processes and premises from the hazard of fire and explosion
arising from the storage, handling or use of structures, materials or devices; from
conditions hazardous to life, property or public welfare in the occupancy of structures or
premises; and from the construction, extension, repair, alteration or removal of fire
suppression, automatic sprinkler systems and alarm systems or fire hazards in the
structure or on the premises from occupancy or operation.
[A] 101.4.6 Energy. The provisions of the International Energy Conservation Code shall
apply to all matters governing the design and construction of buildings for energy
efficiency.
[A] 101.4.7 Existing buildings. The provisions of the International Existing Building
Code shall apply to matters governing the repair, alteration, change of occupancy,
addition to and relocation of existing buildings.
101.4.1 Electrical. All references to the Electrical Code shall mean the electrical code
currently in effect as enacted and amended from time to time by the State of Colorado.
101.4.2 Gas. All references to the International Fuel Gas Code shall mean the fuel gas
code currently in effect as enacted by the City.
101.4.3 Mechanical. All references to the International Mechanical Code shall mean the
mechanical code currently in effect as enacted by the City.
- 4 -
101.4.4 Plumbing. All references to the International Plumbing Code shall mean the
plumbing code currently in effect as enacted and amended form time to time by the State
of Colorado.
101.4.5 Property Maintenance. All references to the International Property
Maintenance Code shall mean the property maintenance code currently in effect as
enacted by the City.
101.4.6 Fire Prevention. All references to the International Fire Code shall mean the
fire code currently in effect as enacted by the City.
101.4.7 Energy. All references to the International Energy Conservation Code shall
mean the energy code currently in effect as enacted by the City.
101.4.8 Residential. All references to the International Residential Code shall mean the
residential code currently in effect as enacted by the City.
101.4.9 Areas prone to flooding. All references to ‘flood hazard’ and ‘areas prone to
flooding’ in this code and appendices adopted therewith subject to applicable regulations
and requirements set forth in the City Code, “Chapter 10, Flood Prevention and
Protection.”
101.4.10 Existing buildings. All references to existing buildings may be regulated
pursuant to the adopted International Property Maintenance Code or the 2012
International Building Code Chapter 34 titled ‘Existing Buildings and Structures'
previously adopted by the City of Fort Collins and no longer a chapter in this code.
(3) Section 103 Department of Building Safety is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
SECTION 103
DEPARTMENT OF BUILDING SAFETY
[A] 103.1 Creation of enforcement agency. The Department of Building Safety is
hereby created and the official in charge thereof shall be known as the building official.
[A] 103.2 Appointment. The building official shall be appointed by the chief appointing
authority of the jurisdiction.
[A] 103.3 Deputies. In accordance with the prescribed procedures of this jurisdiction and
with the concurrence of the appointing authority, the building official shall have the
authority to appoint a deputy building official, the related technical officers, inspectors,
plan examiners and other employees. Such employees shall have powers as delegated by
the building official. For the maintenance of existing properties, see the International
Property Maintenance Code.
SECTION 103 CODE ADMINISTRATION
- 5 -
103.1 Entity charged with code administration. The Community Development and
Neighborhood Services Department (CDNS), as established by the City Code, is hereby
charged with the administration and enforcement of this code.
The building official, appointed by the City Manager, is charged with the direct overall
administration and enforcement of this code; and, in the performance of said duties, may
delegate the necessary authority to the appropriate technical, administrative, and
compliance staff under the supervision the building official.
(4) Section 105.2 Work exempt from permit, including provisions under the heading of
“Building”, is hereby retained with the following amendments:
105.2 Work exempt from permit.
Exemptions from permit requirements of this code shall not be deemed to grant
authorization for any work to be done in any manner in violation of the provisions of this
code or any other laws or ordinances of this jurisdiction. Permits shall not be required for
the following:
Building:
1. One-story, detached, accessory structures used as tool and storage sheds,
playhouses and similar uses, for lawn and garden equipment storage, tool storage and
similar uses, as well as arbors, pergolas, and similar structures, provided the floor area is
not greater than 120 square feet (11.15 m
2
)
or 8 feet (2.438 m) in height measured from
grade, do not house flammable liquids in quantities exceeding 10 gallons (38 l) per
building and are located at least 3 feet (0.914 m) from an adjoining property line.
2. Fences not over 7 feet (2134 mm) 6 feet (1829 mm) high.
3 Oil derricks
4. Retaining walls that are not over 4 feet (1219 mm) in height measured from the
bottom of the footing low side grade to the top of the wall unless supporting a surcharge
or impounding Class I, II or IIIA liquids. The horizontal distance to the next uphill
retaining wall shall be at least equal to the total height of the lower retaining wall.
5. Water tanks supported directly upon grade if the capacity does not exceed 5,000
gallons (18,927 L) and the ratio of height to diameter or width does not exceed 2 to 1.
6. Platforms intended for human occupancy or walking, sidewalks and driveways
not more than 30 inches (762 mm) above adjacent grade, and not over any basement
window or story below and are not part of an accessible route.
7. Painting, papering, tiling, carpeting, cabinets, counter tops and similar finish
work.
8. Temporary motion picture, television and theater stage sets and scenery.
- 6 -
9. Prefabricated and portable swimming pools accessory to a Group R-3 occupancy
that are less than 24 inches (610 mm) deep, are not greater than 5,000 gallons (18 925 L)
and are installed entirely above ground or wading pools, hot tubs or spas if such
structures are supported directly upon grade when the walls of such structure are entirely
above grade and if such structures cannot contain water more than 24 inches (610 mm)
deep.
10. Shade cloth structures constructed for nursery or agricultural purposes, not
including service systems. Hoop houses constructed with a flexible frame such as PVC
tubing used for starting plants.
11. Swings and other playground equipment or play structures accessory to detached
one- and two-family dwellings provided the floor area is not greater than 120 square feet
(11.15 m
2
)
or 8 feet (2.438 m) in height measured from grade, including one elevated
playhouse or play structure per lot designed, and used exclusively for play. Elevated play
houses or play structures shall not exceed 64 square feet (5.9 m2)
of floor area or 6 feet
(1.82 m) in height as measured from the floor to the highest point of such structure.
12. Window awnings in Group R-3 and U occupancies, supported by an exterior wall
which do not project more than 54 inches (1372 mm) from the exterior wall, do not
require additional support, and do not extend over the public right of way. Window
replacement requiring no structural alteration. Window replacement requiring no change
in the window configuration which reduces the size of the window clear opening.
Window replacement when such work is determined not to be historically significant.
Storm window, storm door and rain gutter installation.
13. Non-fixed and movable fixtures, cases, racks, counters and partitions not over 5
feet 9 inches (1753 mm) in height.
14. Decks not exceeding 200 square feet (18.58 m2) in area that are not more than 30
inches (762 mm) above grade, are not attached to a building, and do not serve an exit
door required by Chapter 10.
15. Roofing repair or replacement work not exceeding one square (100 square feet) of
covering per building.
16. Replacement of nonstructural siding when the removal of siding is performed in
accordance with State laws regarding asbestos and lead paint.
17. Work valued at less than $500 when such work does not involve alteration of
structural components, fire-rated assemblies, plumbing, electrical, mechanical or fire-
extinguishing systems.
18. Decorative ponds, fountains and pools that cannot contain water more than 24
inches (610 mm) deep.
- 7 -
(5) Section 105.2 Work exempt from permit, is further amended by deleting all headings and
references under Electrical, Gas, Mechanical, and Plumbing in their entirety.
Electrical:
Repairs and maintenance: Minor repair work, including the replacement of lamps or the
connection of approved portable electrical equipment to approved permanently installed
receptacles.
Radio and television transmitting stations: The provisions of this code shall not apply to
electrical equipment used for radio and television transmissions, but do apply to
equipment and wiring for a power supply and the installations of towers and antennas.
Temporary testing systems: A permit shall not be required for the installation of any
temporary system required for the testing or servicing of electrical equipment or
apparatus.
Gas:
1. Portable heating appliance.
2. Replacement of any minor part that does not alter approval of equipment or make
such equipment unsafe.
Mechanical:
1. Portable heating appliance.
2. Portable ventilation equipment.
3. Portable cooling unit.
4. Steam, hot or chilled water piping within any heating or cooling equipment
regulated by this code.
5. Replacement of any part that does not alter its approval or make it unsafe.
6. Portable evaporative cooler.
7. Self-contained refrigeration system containing 10 pounds (4.54 kg) or less of
refrigerant and actuated by motors of 1 horsepower (0.75 kW) or less.
Plumbing:
1. The stopping of leaks in drains, water, soil, waste or vent pipe, provided,
however, that if any concealed trap, drain pipe, water, soil, waste or vent pipe becomes
- 8 -
defective and it becomes necessary to remove and replace the same with new material,
such work shall be considered as new work and a permit shall be obtained and inspection
made as provided in this code.
2. The clearing of stoppages or the repairing of leaks in pipes, valves or fixtures and
the removal and reinstallation of water closets, provided such repairs do not involve or
require the replacement or rearrangement of valves, pipes or fixtures.
(6) Section 105.3.2 Time limitation of application is hereby retained in its entirety with the
following amendments:
105.3.2 Time limitation of application An application for a permit for any proposed
work shall be deemed to have been abandoned 180 days after the date of filing, unless
such application has been pursued in good faith or a permit has been issued; except that
the building official is authorized to grant one or more extensions of time for additional
periods not exceeding 90 180 days each provided the application has not expired and is
considered an active application. The extension shall be requested in writing and
justifiable cause demonstrated. Applications that have expired for 30 days or more will be
considered as null and void and all plans discarded.
(7) Section 105.5 Expiration is hereby retained in its entirety with the following
amendments:
Every permit issued shall become invalid unless the work on the site authorized by such
permit is commenced within 180 days after its issuance, or if the work authorized on the
site by such permit is suspended or abandoned for a period of 180 days after the time the
work is commenced. The building official is authorized to grant, in writing, one or more
extensions of time, for periods not more than 180 days each, provided the permit has not
expired for more than 30 days. The extension shall be requested in writing and justifiable
cause demonstrated.
Both prior to and subsequent to the effective date of this code, any work authorized by a
permit regulated by this code or any other building construction code administered by the
building official that involves the construction or alteration of an exterior building
component, assembly or finish material, such as the foundation, wall and roof framing,
sheathing, siding, fenestration, and roof covering, shall be fully finished for permanent
outdoor exposure within 24 months of the date of the issuance of such permit.
(8) Section 106 Floor and Roof Design Loads is hereby deleted in its entirety.
SECTION 106
FLOOR AND ROOF DESIGN LOADS
[A] 106.1 Live loads posted.
In commercial or industrial buildings, for each floor or portion thereof designed for live
loads exceeding 50 psf (2.40 kN/m2), such design live loads shall be conspicuously
- 9 -
posted by the owner or the owner’s authorized agent in that part of each story in which
they apply, using durable signs. It shall be unlawful to remove or deface such notices.
[A] 106.2 Issuance of certificate of occupancy.
A certificate of occupancy required by Section 111 shall not be issued until the floor load
signs, required by Section 106.1, have been installed.
[A] 106.3 Restrictions on loading.
It shall be unlawful to place, or cause or permit to be placed, on any floor or roof of a
building, structure or portion thereof, a load greater than is permitted by this code.
(9) Section 107.3.1 Approval of construction documents, is hereby retained in its
entirety with the following amendments:
107.3.1 Approval of construction documents. When the building official issues a
permit, the construction documents shall be approved in writing or by a stamp indicating
the approved permit number which states “REVIEWED FOR CODE COMPLIANCE”.
One set of construction documents so reviewed shall be retained by the building official.
The other set shall be returned to the applicant, shall be kept at the site of work and shall
be open to inspection by the building official or his or her authorized representative.
(10) Section 108 Temporary Structures and Uses is hereby deleted in its entirety.
SECTION 108 TEMPORARY STRUCTURES AND USES
[A] 108.1 General. The building official is authorized to issue a permit for temporary
structures and temporary uses. Such permits shall be limited as to time of service, but
shall not be permitted for more than 180 days. The building official is authorized to grant
extensions for demonstrated cause.
[A] 108.2 Conformance. Temporary structures and uses shall conform to the structural
strength, fire safety, means of egress, accessibility, light, ventilation and sanitary
requirements of this code as necessary to ensure public health, safety and general welfare.
[A] 108.3 Temporary power. The building official is authorized to give permission to
temporarily supply and use power in part of an electric installation before such
installation has been fully completed and the final certificate of completion has been
issued. The part covered by the temporary certificate shall comply with the requirements
specified for temporary lighting, heat or power in NFPA 70.
[A] 108.4 Termination of approval. The building official is authorized to terminate such
permit for a temporary structure or use and to order the temporary structure or use to be
discontinued.
(11) Section 109, FEES, is hereby deleted in its entirety and the following is hereby added in
lieu thereof:
- 10 -
[A] 109.1 Payment of fees. A permit shall not be valid until the fees prescribed by law
have been paid, nor shall an amendment to a permit be released until the additional fee, if
any, has been paid.
[A] 109.2 Schedule of permit fees. On buildings, structures, electrical, gas, mechanical,
and plumbing systems or alterations requiring a permit, a fee for each permit shall be
paid as required, in accordance with the schedule as established by the applicable
governing authority.
[A] 109.3 Building permit valuations. The applicant for a permit shall provide an
estimated permit value at time of application. Permit valuations shall include total value
of work, including materials and labor, for which the permit is being issued, such as
electrical, gas, mechanical, plumbing equipment and permanent systems. If, in the
opinion of the building official, the valuation is underestimated on the application, the
permit shall be denied, unless the applicant can show detailed estimates to meet the
approval of the building official. Final building permit valuation shall be set by the
building official.
[A] 109.4 Work commencing before permit issuance. Any person who commences any
work on a building, structure, electrical, gas, mechanical or plumbing system before
obtaining the necessary permits shall be subject to a fee established by the building
official that shall be in addition to the required permit fees.
[A] 109.5 Related fees. The payment of the fee for the construction, alteration, removal
or demolition for work done in connection to or concurrently with the work authorized by
a building permit shall not relieve the applicant or holder of the permit from the payment
of other fees that are prescribed by law.
[A] 109.6 Refunds. The building official is authorized to establish a refund policy.
SECTION 109 FEES
109.1 Payment of fees. No permit shall be valid until the fees prescribed by the City
Manager pursuant to Chapter 7.5, Article I of the City Code, entitled, ‘Administrative
Fees’, have been paid.
109.2 Related fees. The payment of the fee for the construction, alteration, removal or
demolition for work done in connection with or concurrently with the work authorized by
a permit shall not relieve the applicant or holder of the permit from the payment of other
fees that are prescribed by law.
109.3 Fee refunds. Any fee paid hereunder that is erroneously paid or collected shall be
refunded. The building official may authorize the refunding of 100 percent of a plan
review fee or permit fee to the applicant who paid such fee provided the plan review is
withdrawn or cancelled and the plan review and/or work authorized under a permit issued
- 11 -
in accordance with this code has not commenced; and further provided that such plan
review or permit is valid and not expired as set forth in Section 105.5. Prior to
authorizing the refunding of any fee paid to the original applicant or permitee, a written
request from such party must be submitted to the City within 180 days of the date of the
fee payment.
(12) Section 110.3 Required inspections is hereby retained in its entirety with the
following amendments:
110.3 Required inspections The building official, upon notification, shall make or shall
cause to be made the inspections set forth in Sections 110.3.1 through 110.3.10.
. . .
(13) Section 111.2 Certificate issued is hereby retained in its entirety with the following
amendments:
111.2 Certificate issued. After the building official inspects the building or structure and
does not find violations of the provisions of this code or other laws that are enforced by
the department of building safety, the building official shall issue a certificate of
occupancy that contains the following:
1. The building permit number.
2. The address of the structure.
3. The name and address of the owner or the owner’s authorized agent.
4. A description of that portion of the structure for which the certificate is issued.
5. A statement that the described portion of the structure has been inspected for
compliance with the requirements of this code for the occupancy and division of
occupancy and the use for which the proposed occupancy is classified.
6. The name of the building official.
7. The edition of the code under which the permit was issued.
8. The use and occupancy, in accordance with the provisions of Chapter 3.
9. The type of construction as defined in Chapter 6.
10. The design occupant load.
1110. If an automatic sprinkler system is provided, whether the sprinkler system is
required.
12. Any special stipulations and conditions of the building permit.
(14) Section 113, Board of Appeals, is hereby deleted in its entirety and the following is
hereby added in lieu thereof:
SECTION 113 BOARD OF APPEALS
[A] 113.1 General. In order to hear and decide appeals of orders, decisions or
determinations made by the building official relative to the application and interpretation
of this code, there shall be and is hereby created a board of appeals. The board of appeals
- 12 -
shall be appointed by the applicable governing authority and shall hold office at its
pleasure. The board shall adopt rules of procedure for conducting its business.
[A] 113.2 Limitations on authority. An application for appeal shall be based on a claim
that the true intent of this code or the rules legally adopted thereunder have been
incorrectly interpreted, the provisions of this code do not fully apply or an equally good
or better form of construction is proposed. The board shall have no authority to waive
requirements of this code.
[A] 113.3 Qualifications. The board of appeals shall consist of members who are
qualified by experience and training to pass on matters pertaining to building construction
and are not employees of the jurisdiction.
SECTION 113 BOARD OF APPEALS
113.1 General. The Building Review Board (hereafter “Board”) established in Section
2-117 of the City Code is hereby empowered in accordance with the procedures set forth
in this Section and as authorized under Section 2-119 of the City Code to hear and decide
appeals of orders, decisions, or determinations made by the building official relative to
the application and interpretation of this code; to determine the suitability of alternative
materials or alternative methods of construction; and to grant permit extensions and
reinstatements as prescribed by Section 105.5. The building official shall serve as the
Secretary of the Board. The Board shall adopt rules of procedure for conducting its
business and shall render all decisions and findings in writing.
113.2 Applications/Hearings. When a building permit applicant or a holder of a
building permit desires relief from any decision of the building official related to the
enforcement of this code, except as is otherwise limited in Section 113.4, such building
permit applicant, building permit holder, or representative thereof may appeal the
decision of the building official to the Board, stating that such decision by the building
official was based on an erroneous interpretation of the building regulations or that an
alternative design, alternative materials and/or the alternative methods of construction
proposed by the appellant are equivalent to those prescribed by this code, considering
structural strength, effectiveness, fire resistance, durability, safety and any other pertinent
factors.
The Board shall hear and decide all appeals made to it and shall have the authority to rule
in favor of the appellant when the Board determines that the interpretation of the building
regulations of the City by the building official was erroneous, or when the Board
determines an alternative design, alternative materials and/or the alternative methods
proposed by the appellant are equivalent to those prescribed by this code, considering
structural strength, effectiveness, fire resistance, durability, safety and any other pertinent
factors. The Board shall require that sufficient evidence be submitted to substantiate any
claims made regarding the proposed alternative design, alternative materials and/or
alternative methods of construction. A quorum of 4 members shall be necessary for any
meeting of the Board.
- 13 -
113.3 Fees and Notification. Persons desiring to appeal to the Board any decision of the
building official as provided in this Section shall, at the time of filing such appeal, pay to
the City a filing fee in the amount of $50. Written notice of hearings shall be given to the
Appellant and, with respect to requests for exceptions or variances to Section 1101.1 of
this code, to the secretary to the Commission on Disability, at least 4 days prior to the
hearing by mailing the same to such party's last known address by regular U.S. mail.
113.4 Limitations. The Building Review Board shall have no authority with respect to
any of the following functions:
1. The administration of this code except as expressly provided otherwise;
2. Waiving requirements of this code, except as provided in this Section;
3. Modifying the applicable provisions of, or granting variances to, this code, or
approving the use of alternative designs, alternative materials and/or alternative
methods of construction except as provided for in this Section and based upon a
specific appeal from a determination or decision of the building official on an
individual case basis; and
4. Modifying, interpreting, or ruling on the applicability or intent of the zoning and
land use regulations or other laws of the City except as expressly empowered
otherwise.
(15) Section 114.4, Violation penalties is retained in its entirety with the following
amendments:
114.4 Violation penalties. Any person who violates a provision of this code or fails to
comply with any of the requirements thereof or who erects, constructs, alters or repairs a
building or structure in violation of the approved construction documents or directive of
the building official, or of a permit or certificate issued under the provisions of this code,
shall be subject to penalties as prescribed by law. shall be guilty of a misdemeanor and
shall be subject to the penalties and fines specified in Section 1-15 of the City Code.
(16) A new Section 114.5 Work commencing before permit issuance, is hereby added to read
as follows:
114.5 Work commencing before permit issuance. In addition to the penalties set forth
in Section 114.4, any person or firm who, before obtaining the necessary permit(s),
commences any construction of, or work on, a building, structure, electrical, gas,
mechanical or plumbing system that is not otherwise exempt from obtaining a permit,
shall be subject to a fine in addition to the standard prescribed permit fee. Said fine shall
be equal in amount to the permit fee, except that it shall not be less than $50 nor more
than $1,000 for the first such violation. A person or firm committing the same such
violation repeatedly shall be subject to a fine equal to double the amount of the permit fee
or double the amount of the fine imposed for the preceding violation, whichever is
greater, for each such subsequent violation committed within 180 days of a previous
- 14 -
violation. Said fines may be appealed to the City Manager pursuant to Chapter 2, Article
VI of the City Code.
(17) Section 202, DEFINITIONS, is hereby amended to modify, or add, in alphabetical
order, the following definitions:
. . .
COMMISSIONING. A process to verify and document that the selected building and
systems have been designed, installed, and function in accordance with the construction
documents, manufacturers’ specifications, and minimum code requirements.
. . .
DWELLING. A building that contains one or two dwellingunits used, intended or
designed to be used, rented, leased, let or hired out to be occupied for living purposes.
DWELLING. A building used exclusively for residential occupancy and for permitted
accessory uses, including single-family dwellings, two-family dwellings and multi-family
dwellings, and short term primary and non-primary rentals. The term dwelling shall not
include hotels, motels, homeless shelters, seasonal overflow shelters, tents or other
structures designed or used primarily for temporary occupancy with the exception of
short term primary and non-primary rentals. Any dwelling shall be deemed to be a
principal building.
DWELLING UNIT. A single unit providing complete, independent living facilities for
one or more persons, including permanent provisions for living, sleeping, eating, cooking
and sanitation
DWELLING UNIT. One or more rooms and a single kitchen and at least 1 bathroom,
designed, occupied or intended for occupancy as separate quarters for the exclusive use
of a single family for living, cooking and sanitary purposes, located in a single-family,
two-family or multi-family dwelling or mixed-use building.
. . .
FAMILY. Any number of persons who are all related by blood, marriage, adoption,
guardianship or other duly authorized custodial relationship, and who live together as a
single housekeeping unit and share common living, sleeping, cooking and eating
facilities.
. . .
GRADE (ADJACENT GROUND ELEVATION). The lowest point of elevation of the
finished surface of the ground, paving or sidewalk between the building and the property
line or, when the property line is more than 5 feet (1.524 m) from the building, between
the building and a line 5 feet (1.524 m) from the building.
- 15 -
. . .
ROOM, SLEEPING (BEDROOM). A habitable room within a dwelling or other
housing unit designed primarily for the purpose of sleeping. The presence of a bed, cot,
mattress, convertible sofa or other similar furnishing used for sleeping purposes shall be
prima facie evidence that such space or room is a sleeping room. The presence of closets
or similar storage facilities shall not be considered relevant factors in determining
whether or not a room is a sleeping room.
. . .
TOWNHOUSE. A single-family dwelling unit constructed in a as part of a group of
three two or more attached individual dwelling units, in which each unit extends from the
foundation to roof and with open space on at least two sides. each of which is separated
from the other from the foundation to the roof and is located entirely on a separately
recorded and platted parcel of land (site) bounded by property lines, which parcel is
deeded exclusively for such single-family dwelling.
. . .
VOLATILE ORGANIC COMPOUND (VOC): Any compound of carbon, excluding
carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates, and
ammonium carbonate, which participates in atmospheric photochemical reactions. VOCs
include a variety of chemicals, some of which may have short-and long-term adverse
health effects emitted as gases from certain solids or liquids.
. . . .
(18) Section 419.1 General is hereby retained in its entirety with the following amendments:
419.1 General.
A live/work unit shall comply with Sections 419.1 through 419.9.
Exception: Dwelling or sleeping units that include an office that is less than 10 percent
20 percent of the area of the dwelling unit are permitted to be classified as dwelling units
with accessory occupancies in accordance with Section 508.2.
(19) A new Section 501.3 Premises Identification is hereby added to read as follows:
501.3 Premises Identification During Construction. The approved permit number and
street address number shall be displayed and be plainly visible and legible from the
public street or road fronting the property on which any building is being constructed or
remodeled.
- 16 -
(20) Section 505.2.1 Area Limitation is hereby retained in its entirety with the addition of a
new exception number 3 to read as follows:
. . .
3. Within individual dwelling units of Group R occupancies, the maximum
aggregate area of a mezzanine may be equal to one-half of the area of the room in
which it is located, without being considered an additional story. The mezzanine
may be closed to the room in which it is located as long as means of egress from
the mezzanine are in conformance with Section 505.2.2.
(21) Section 505.2.2 Means of Egress is hereby retained in its entirety with the
following amendments:
505.2.2 Means of egress. The means of egress for mezzanines shall comply with the
applicable provisions of Chapter 10. Habitable mezzanines within dwelling units shall be
provided with emergency escape and rescue openings in accordance with Section 1030.
(22) Section 705.3 Buildings on the same lot is hereby retained in its entirety with the
following amendment adding a third paragraph after the numbered Exceptions, to read as
follows:
. . .
Lines or walls that are established solely to delineate individual portions of a building or
of a planned unit development (PUD) need not be considered as property lines for the
purposes of this code, provided that such building is entirely located on property which is
under common ownership and further provided that required distances, set forth in
Section 503.1.2 for assumed property lines between buildings located on the same
property, are maintained.
(23) Section 903.2.1.1 Group A-1 is hereby retained in its entirety with the following
amendments:
903.2.1.1 Group A-1. An automatic sprinkler system shall be provided for fire areas
containing Group A-1 occupancies and intervening floors of the building where one of
the following conditions exists:
1. The fire area exceeds 12,000 5000 square feet (1115 464.5 m
2
).
2. The fire area has an occupant load of 300 or more.
3. The fire area is located on a floor other than a level of exit discharge serving such
occupancies.
4. The fire area contains a multitheater complex.
- 17 -
(24) Section 903.2.1.3 Group A-3 is hereby retained in its entirety with the following
amendments:
903.2.1.3 Group A-3. An automatic sprinkler system shall be provided for fire areas
containing Group A-3 occupancies and intervening floors of the building where one of
the following conditions exists:
1. The fire area exceeds 12,000 5000 square feet (1115 464.5 m
2
).
2. The fire area has an occupant load of 300 or more.
3. The fire area is located on a floor other than a level of exit discharge serving such
occupancies.
(25) Section 903.2.1.4 Group A-4 is hereby retained in its entirety with the following
amendments:
903.2.1.4 Group A-4. An automatic sprinkler system shall be provided for fire areas
containing Group A-4 occupancies and intervening floors of the building where one of
the following conditions exists:
1. The fire area exceeds 12,000 5000 square feet (1115 464.5 m
2
).
2. The fire area has an occupant load of 300 or more.
3. The fire area is located on a floor other than a level of exit discharge serving
such occupancies.
(26) A new Section 903.2.1.8 Group B is hereby added to read as follows:
903.2.1.8 Group B. An automatic sprinkler system shall be provided for fire areas
containing Group B occupancies when the fire area exceeds 5000 square feet (464.5 m
2
).
(27) Section 903.2.3 Group E is hereby retained in its entirety with the following
amendments:
903.2.3 Group E. An automatic sprinkler system shall be provided for Group E
occupancies as follows:
1. Throughout all Group E fire areas greater than 12,000 5000 square feet (1115
464.5 m
2
) in area.
2. Throughout every portion of educational buildings below the lowest level of exit
discharge serving that portion of the building.
- 18 -
Exception: An automatic sprinkler system is not required in any area below the
lowest level of exit discharge serving that area where every classroom throughout the
building has not fewer than one exterior exit door at ground level.
(28) Section 903.2.4 Group F-1 is hereby retained in its entirety with the following
amendments:
903.2.4 Group F-1. An automatic sprinkler system shall be provided throughout all
buildings containing a Group F-1 occupancy where one of the following conditions
exists:
1. A Group F-1 fire area exceeds 12,000 5000 square feet (1115 464.5 m
2
).
2. A Group F-1 fire area is located more than three stories above grade plane.
3. The combined area of all Group F-1 fire areas on all floors, including any
mezzanines, exceeds 24,000 square feet (2230 m
2
).
4.3. A Group F-1 occupancy used for the manufacture of upholstered furniture or
mattresses exceeds 2500 square feet (232 m
2
).
. . .
(29) A new Section 903.2.4.2 Group F-2 is hereby added to read as follows:
903.2.4.2 Group F-2. An automatic sprinkler system shall be provided throughout all
buildings containing a Group F-2 occupancy where one of the following conditions
exists:
1. A Group F-2 fire area exceeds 5000 square feet (464.5 m
2
).
2. A Group F-2 fire area is located more than three stories above grade plane.
(30) Section 903.2.6 Group I is hereby retained in its entirety with the following
amendments:
903.2.6 Group I. An automatic sprinkler system shall be provided throughout buildings
with a Group I fire area.
Exceptions:
1. An automatic sprinkler system installed in accordance with Section 903.3.1.2 shall be
permitted in Group I-1 Condition 1 facilities.
- 19 -
21. An automatic sprinkler system is not required where group I-4 day care facilities are
at the level of exit discharge and where every room where care is provided has not fewer
than one exterior exit door and the fire area does not exceed 5000 square feet (464.5 m
2
).
32. In buildings where Group I-4 day care is provided on levels other than the level of exit
discharge, an automatic sprinkler system in accordance with Section 903.3.1.1 shall be
installed on the entire floor where care is provided, all floors between the level of care
and the level of exit discharge, and all floors below the level of exit discharge other than
areas classified as an open parking garage.
(31) Section 903.2.7 Group M is hereby retained in its entirety with the following
amendments:
903.2.7 Group M. An automatic sprinkler system shall be provided throughout
buildings containing a Group M occupancy where one of the following conditions exists:
1. A Group M fire area exceeds 12,000 5000 square feet (1115 464.5 m
2
).
2. A Group M fire area is located more than three stories above grade plane.
3. The combined area of all Group M fire areas on all floors, including any
mezzanines, exceeds 24,000 square feet (2230 m
2
).
43. A Group M occupancy used for the display and sale of upholstered furniture or
mattresses exceeds 5000 square feet (464 m
2
).
. . .
(32) Section 903.2.9 Group S-1 is hereby retained in its entirety with the following
amendments:
903.2.9 Group S-1. An automatic sprinkler system shall be provided throughout all
buildings containing a Group S-1 occupancy where one of the following conditions
exists:
1. A Group S-1 fire area exceeds 12,000 5000 square feet (1115 464.5 m
2
).
2. A Group S-1 fire area is located more than three stories above grade plane.
3. The combined area of all Group S-1 fire areas on all floors, including any
mezzanines, exceeds 24,000 square feet (2230 m
2
).
43. A Group S-1 fire area used for the storage of commercial motor vehicle where the
fire area exceeds 5000 square feet (464 m
2
).
54. A Group S-1 occupancy used for the storage of upholstered furniture or
mattresses exceeds 2500 square (232m
2
).
- 20 -
(33) Section 903.2.9.1 Repair Garages is hereby retained in its entirety with the
following amendments:
903.2.9.1 Repair garages.
An automatic sprinkler system shall be provided throughout all buildings used as repair
garages in accordance with Section 406, as shown:
1. Buildings having two or more stories above grade plane, including basements,
with a fire area containing a repair garage exceeding 10,000 5000 square feet
(929 464.5 m
2
).
2. Buildings not more than one story above grade plane, with a fire area containing
a repair garage exceeding 12,000 5000 square feet (1115 464.5 m
2
).
3. Buildings with repair garages servicing vehicles parked in basements.
4. A Group S-1 fire area used for the repair of commercial motor vehicles where the
fire area exceeds 5000 square feet (464 m
2
).
. . .
(34) Section 903.2.10 Group S-2 enclosed parking garages is hereby retained in its entirety
with the following amendments:
903.2.10 Group S-2 enclosed parking garages. An automatic sprinkler system shall be
provided throughout buildings classified as enclosed parking garages in accordance with
Section 406.6 where either of the following conditions exists:
1. Where the fire area of the enclosed parking garage exceeds 12,000 square feet
(1115 m2).
2. Where the enclosed parking garage is located beneath other groups.
Exception: Enclosed parking garages located beneath Group R-3 occupancies.
903.2.10 Group S-2 enclosed parking garages. An automatic sprinkler system shall be
provided throughout all buildings containing a Group S-2 occupancy where one of the
following conditions exists:
1. A Group S-2 fire area exceeds 5000 square feet (464.5 m
2
).
2. A Group S-2 fire area is located more than three stories above grade plane.
Exception: Open Parking Garages
(35) Section 903.2.11.1.3 Basements is hereby retained in its entirety with the following
amendments:
- 21 -
903.2.11.1.3 Basements. Where any portion of a basement is located more than 75 feet
(22 860 mm) from openings required by Section 903.2.11.1, or where walls, partitions or
other obstructions are installed that restrict the application of water from hose streams,
the basement shall be equipped throughout with an approved automatic sprinkler system.
(36) Section 903.3.1.2 NFPA 13R sprinkler systems is hereby amended to read as follows
903.3.1.2 NFPA 13R sprinkler systems. Automatic Sprinkler systems in Group R
occupancies up to and including four stories in height in buildings not exceeding 60 feet
(18 288mm) in height above grade plane shall be permitted to be installed throughout in
accordance with NFPA 13R Section 903.3.1.1.
Exception: NFPA 13R is allowed when the following conditions exist:
1. The building does not contain more than 6 individual dwelling units and the units
are separated from each other with a 1 hour fire wall.
2. The building does not contain more than 12 individual dwelling units and is
divided into no more than 6 individual dwellings units (complying with number 1
above) by a minimum 2 hour fire wall.
The number of stories of Group R occupancies constructed in accordance with Sections
510.2 and 510.4 shall be measured from the horizontal assembly creating separate
buildings.
(37) Section 907.2.11 Single- and multiple-station smoke alarms is hereby retained in its
entirety with the following amendment to add a new second paragraph thereto to read as
follows:
. . .
When one or more sleeping rooms are added or created in existing Group R Occupancies,
the entire building shall be provided with smoke detectors located and installed as
required for new Group R Occupancies as described herein.
. . .
(38) Section 1009.3 Stairways, is hereby preserved in its entirety with the following
amendments to the Exceptions listed therein:
Exceptions:
1. Exist access stairways providing means of egress from mezzanines are permitted
as part of an accessible means of egress.
- 22 -
2. The clear width of 48 inches (1219 mm) between handrails is not required in
buildings not more than 4 stories above grade plane equipped throughout with an
automatic sprinkler system installed in accordance with Section 903.3.1.1 or
903.3.1.2.
3. The clear width of 48 inches (1219 mm) between handrails is not required for
stairways accessed from a refuge area in conjunction with a horizontal exit.
4. Areas of refuge are not required at exit access stairways where two-way
communication is provided at the elevator landing in accordance with Section
1009.8.
54. Areas of refuge are not required at exit access stairways in buildings not more
than 4 stories above grade plane equipped throughout with an automatic sprinkler
system installed in accordance with Section 903.3.1.1 or 903.3.1.2.
65. Areas of refuge are not required at stairways serving open parking garages.
76. Areas of refuge are not required for smoke protected assembly seating areas
complying with Section 1029.6.2.
87. Areas of refuge are not required at stairways in Group R-2 occupancies.
98. Areas of refuge are not required for stairways accessed from a refuge area in
conjunction with a horizontal exit.
(39) Section 1009.4 Elevators is hereby preserved in its entirety with the following
amendments:
1009.4 Elevators. In order to be considered part of an accessible means of egress, an
elevator shall comply with the emergency operation and signaling device requirements of
Section 2.27 of ASME A17.1/CSA B44. Standby power shall be provided in accordance
with Chapter 27 and Section 3003. The elevator shall be accessed from an area of refuge
complying with Section 1009.6.
. . .
(40) Section 1009.4 Elevators is further amended by the addition of a new Exception 6 to read
as follows:
. . .
6. Elevators in buildings not more than 4 stories above grade plane are not required
to be considered an accessible means of egress when the building is equipped
throughout with an automatic sprinkler system installed in accordance with
Section 903.3.1.1 or 903.3.1.2.
- 23 -
(41) Section 1009.6 Areas of refuge is hereby retained in its entirety with the following
amendments:
1009.6 Areas of refuge Areas of refuge are not required in buildings not more than 4
stories above grade plane. Every required area of refuge shall be accessible from the
space it serves by an accessible means of egress.
. . .
(42) Section 1009.8 Two-way communication is hereby retained in its entirety with the
following amendments to Exception #1:
. . .
Exception:
1. Two-way communication systems are not required at the landing serving each
elevator or bank of elevators where the two-way communication system is provided
within of buildings not required to provide areas of refuge in accordance with section
1009.6.5.
. . .
(43) Section 1010.1.5 Floor elevation is hereby retained in its entirety with the addition of a
new Exception 7 to read as follows:
. . .
7. Exterior doors serving individual dwelling units, other than the main entrance
door to a dwelling unit, may open at one intervening exterior step that is equally
spaced between the interior floor level above and exterior landing below,
provided that the step has a minimum tread depth of 12 inches, a maximum riser
height of 7 ¾ inches (19.68cm), and a minimum width equal to the door width,
and further provided that the door does not swing over the step.
(44) Section 1010.1.5 Floor elevation is further amended by the addition of the following
paragraph after the Exceptions:
. . .
All exterior steps, slabs, walks, decks and patios serving as exterior door landings or
exterior stairs shall be adequately and permanently secured in place by approved methods
to prevent such landings or stairs from being undermined or subject to significant
displacement due to improper placement of supporting backfill or due to inadequate
anchoring methods.
- 24 -
(45) Section 1011.11 Handrails is hereby retained in its entirety with the following
amendments:
1011.11 Handrails. Stairways of more than 1 riser shall have handrails on each side and
shall comply with Section 1014. Where glass is used to provide the handrail, the handrail
shall also comply with Section 2407.
Exceptions:
1. Stairways within dwelling units and spiral stairways are permitted to have a handrail
on one side only.
2. Decks, patios and walkways that have a single change in elevation where the landing
depth on each side of the change of elevation is greater than what is required for a
landing do not require handrails.
3. In Group R-3 occupancies, a change in elevation consisting of a single riser at an
entrance or egress door does not require handrails.
4. Changes in room elevations of three or fewer risers within dwelling units and
sleeping units in Group R-2 and R-3 do not require handrails.
(46) Section 1015.8 Window openings is hereby retained in its entirety with the following
amendments to the first paragraph to read as follows:
1015.8 Window openings. Windows in Group R-2 and R-3 buildings including dwelling
units, where the top of the sill of an operable window opening is located less than 36
inches 24 inches (610 mm) above the finished floor and more than 72 inches (1829 mm)
above the finished grade or other surface below on the exterior of the building, shall
comply with one of the following:
. . .
(47) A new Section 1015.9 Below grade openings is hereby added to read as follows:
1015.9 Below grade openings. All area wells, stair wells and light wells attached to any
building that are located less than 36 inches from the nearest intended walking surface
and deeper than 36 inches below the surrounding ground level, creating an opening with
a horizontal dimension greater than 24 inches measured perpendicularly from the
building, with the side walls of such well having a slope steeper than 2 horizontal to 1
vertical, shall be protected with guardrails conforming to this Section around the entire
opening, or be provided with an equivalent barrier.
Exceptions:
1. The access side of stairways need not be barricaded.
2. Area wells provided for emergency escape and rescue windows may be protected
with approved grates or covers that comply with Section 1029.4 of this code.
- 25 -
3. Covers and grates may be used over stairways and other openings used
exclusively for service access or for admitting light or ventilation.
(48) Section 1030.1 General is hereby retained in its entirety with the following amendments
to Exceptions 1:
. . .
Exceptions:
1. Basements with a ceiling height of less than 80 inches (2032 mm) 72 inches
(1828.8 mm) shall not be required to have emergency escape and rescue
openings.
. . .
(49) A new Section 1030.3.1 Minimum height from floor is hereby added to read as follows:
1030.3.1 Minimum height from floor. Emergency escape and rescue windows that are
located more than 72 inches (1829 mm) above the finished grade shall have a sill height
of not less than 24 inches (609 mm) measured from the finished interior side floor.
Exception:
Emergency escape and rescue openings located over a roof surface with a slope of 4:12
or less and extending a minimum of 5 feet horizontally outward from the window.
(50) Section 1030.5 Window Wells is hereby retained in its entirety with amendments adding
new exceptions to read as follows:
. . .
Exception:
With the window in the full open position, the bottom window well step may encroach a
maximum of 12 inches (304 mm) into the minimum horizontal projection, provided the
well meets the criteria of 1 and 2 below:
1. The bottom of the well is not less than 36 inches wide (914 mm), centered
horizontally on the openable portion of the emergency escape and rescue opening,
and
2. An unobstructed clear horizontal projection of 36 inches (914 mm) is maintained
at the centerline of the openable portion of the emergency escape and rescue door
or window.
- 26 -
(51) A new Section 1030.5.3 Drainage is hereby added to read as follows:
1030.5.3 Drainage. All window wells shall be designed for proper drainage by
connecting to the building’s foundation drainage system required by Section 1805.4.2 or
by an approved alternative method. The inlet to the drainage system shall be a minimum
of 4 inches (101 mm) below the window sill. Where no drains are required, the window
well surface shall be a minimum of 4 inches (101 mm) below the window sill.
Exceptions:
1. A drainage system for window wells is not required when the foundation is on
well-drained soil or sand-gravel mixture soils as determined by the foundation
engineer of record.
2. A drainage system is not required for new window wells on additions to existing
dwellings.
(52) Section 1101.2 Design is hereby retained in its entirety with the following amendments:
1101.2 Design. Buildings and facilities shall be designed and constructed to be accessible
in accordance with this code and the most recently published edition of ICC A117.1 as
referenced by the building official.
(53) Section 1103.1 Where required is hereby retained in its entirety with the following
amendment to add a new second paragraph to read as follows:
. . .
When the Building Review Board considers granting exceptions or variances either to
this chapter pursuant to Section 113 of this code or to Colorado Statutes pursuant to
Section 9-5-102, C.R.S., it shall require the applicant requesting the exception or variance
to demonstrate that the application of a particular standard or specification relating to
access for persons with disabilities would impose an extraordinary hardship on the
subject property. For the purposes of this Section, an extraordinary hardship shall mean a
substantial and unusual hardship that is the direct result of unique physical site conditions
such as terrain, topography or geology, or that is the direct result of other unique or
special conditions encountered on the subject property, but that are not typically
encountered elsewhere in the City. Constraints, complications or difficulties that may
arise by complying with this chapter and/or with the statutory standards for accessibility
but that do not constitute an extraordinary hardship shall not serve to justify the granting
of an exception or variance.
(54) Section 1107.2 Design is hereby retained in its entirety with the following amendment to
add a new second and a new third paragraph to read as follows:
. . .
- 27 -
When any building or buildings, classified as Group R, Division 1 or Group R, Division 2
Occupancy, are constructed as a single building project (or any phase thereof) on any one
site, and such building project (or phase) contains one or more accessible dwelling units
as required by this chapter or Colorado law, said building project (or phase) shall be
constructed such that all such required accessible dwelling units in such building project
(or phase) provide the same functional features as are provided in the nonaccessible units
in such building project (or phase). Furthermore, all such functional features except
dwelling unit bedroom-types shall be provided in the same proportion as in the
nonaccessible units. Not less than 50 percent of the required accessible dwelling units
shall be constructed with the distribution of accessible dwelling unit bedroom-types
being proportionally the same as the distribution of nonaccessible dwelling unit bedroom-
types, provided that at least one of each dwelling unit bedroom-type constructed in the
building project (or phase) shall be an accessible dwelling unit.
For purposes of this Section 1107.2, the following definitions shall apply. Dwelling unit
bedroom-type shall mean the number of bedrooms within the dwelling unit. Functional
feature shall mean a closet, garage, carport, patio, deck, additional room (such as a
bedroom, bathroom, den, storeroom, laundry or similar room) or any other significant
feature built at the time of original construction that offers occupants improved
convenience or comfort. Aesthetic or decorative features such as colors, architectural
design elements, trim and finish materials, decorative heating appliances not providing
the primary comfort heat source, lighting fixture style, cabinet and hardware style,
plumbing fixture style, the type and location of windows and glazed lights, or any similar
miscellaneous features shall not be construed as functional features.
(55) Table 1107.6.1.1 Accessible Dwelling Units and Sleeping Units is hereby deleted in its
entirety and the following Table 1107.6.1.1 is hereby added in lieu thereof:
TABLE 1107.6.1.1
ACCESSIBLE DWELLING UNITS AND SLEEPING UNITS
Total number
of units
provided
Minimum required number of
accessible units without roll-in
showers
Minimum required
number of accessible
units with roll-in
showers
Total number of required
accessible units
1 - 25 1 0 1
26 - 50 21 01 2
51 - 75 32 12 4
76 - 100 43 12 5
101 - 150 5 2 7
151 - 200 6 2 8
201 - 300 7 3 10
301 - 400 8 4 12
401 - 500 9 4 13
501 - 1000 2% of total 1% of total 3% of total
Over 1000 20, plus 1 for each 100, or fraction
thereof, over 1000
10, plus 1 for each 100,
or fraction thereof, over
1000
30, plus 1 for each 100,
or fraction thereof, over
1000
- 28 -
(56) Section 1203.4 Under-floor ventilation is hereby deleted in its entirety and the following
is hereby added in lieu thereof:
1203.4 Under-floor ventilation.
The space between the bottom of the floor joists and the earth under any building except
spaces occupied by basements or cellars shall be provided with ventilation openings
through foundation walls or exterior walls. Such openings shall be placed so as to provide
cross ventilation of the under-floor space.
1203.4.1 Openings for under-floor ventilation.
The net area of ventilation openings shall be not less than 1 square foot for each 150
square feet (0.67 m2 for each 100 m2) of crawl-space area. Ventilation openings shall be
covered for their height and width with any of the following materials, provided that the
least dimension of the covering shall be not greater than 1/4 inch (6.4 mm):
1. Perforated sheet metal plates not less than 0.070 inch (1.8 mm) thick.
2. Expanded sheet metal plates not less than 0.047 inch (1.2 mm) thick.
3. Cast-iron grilles or gratings.
4. Extruded load-bearing vents.
5. Hardware cloth of 0.035-inch (0.89 mm) wire or heavier.
6. Corrosion-resistant wire mesh, with the least dimension not greater than 1/8 inch (3.2
mm).
1203.4.2 Exceptions. The following are exceptions to Sections 1203.4 and 1203.4.1:
1. Where warranted by climatic conditions, ventilation openings to the outdoors are not
required if ventilation openings to the interior are provided.
2. The total area of ventilation openings is permitted to be reduced to 1/1,500 of the
under-floor area where the ground surface is covered with a Class I vapor retarder
material and the required openings are placed so as to provide cross ventilation of the
space. The installation of operable louvers shall not be prohibited.
3. Ventilation openings are not required where continuously operated mechanical
ventilation is provided at a rate of 1.0 cubic foot per minute (cfm) for each 50 square feet
(1.02 L/s for each 10 m2) of crawlspace floor area and the ground surface is covered with
a Class I vapor retarder.
4. Ventilation openings are not required where the ground surface is covered with a Class
I vapor retarder, the perimeter walls are insulated and the space is conditioned in
accordance with the International Energy Conservation Code.
5. For buildings in flood hazard areas as established in Section 1612.3, the openings for
under-floor ventilation shall be deemed as meeting the flood opening requirements of
ASCE 24 provided that the ventilation openings are designed and installed in accordance
with ASCE 24.
1203.4 Under-floor ventilation All exposed earth in a crawl space shall be covered with
a continuous Class I vapor retarder. Joints of the vapor retarder shall overlap by 6 inches
(152 mm) and shall be sealed or taped. The edges of the vapor retarder shall extend at
- 29 -
least 6 inches (152 mm) up the perimeter stem wall and any footing pads on grade, and be
permanently attached and sealed to the stem wall or footing pads.
1203.4.1 Crawl space. Crawl spaces shall be designed and constructed to be inside the
building thermal envelope, in accordance with the insulation and air sealing requirements
for crawl space walls and rim joists of Section N1102 of the International Residential
Code as amended or the International Energy Conservation Code as amended. Crawl
spaces shall not be vented to the exterior. They shall be conditioned using one of the
following approaches:
1. Continuously operated mechanical exhaust ventilation at a rate equal to 1 cubic
foot per minute (0.47 L/s) for each 50 square feet (4.7m2) of crawl space floor
area, including an air pathway to the common area (such as a duct or transfer
grille);
2. Conditioned air supply sized to deliver at a rate equal to 1 cubic foot per minute
(0.47 L/s) for each 50 square feet (4.7 m2) of under-floor area, including a return
air pathway to the common area (such as a duct or transfer grille);
3. Plenum in existing structures complying with Section M1601.5, if under-floor
space is used as a plenum.
Exception:
Crawl spaces shall be permitted to be designed and constructed as unconditioned spaces,
outside the building thermal envelope, provided the following requirements are met:
1. The floor above the crawl space is part of the building thermal envelope. It shall
meet the insulation requirements of Table N1102.1.1 of this code and shall be air-
sealed in accordance with Section N1102.4.1 of this code.
2. Ventilation openings shall be placed through foundation walls or exterior walls.
The minimum net area of ventilation openings shall not be less than 1 square foot
(0.0929 m2) for each 1,500 square feet (140 m2) of under-floor space area. One
such ventilating opening shall be within 3 feet (914 mm) of each corner of the
building.
3. Ventilation openings shall be covered for their height and width with any of the
following materials provided that the least dimension of the covering shall not
exceed 1/4 inch (6.4 mm):
a. Perforated sheet metal plates not less than 0.070 inch (1.8 mm) thick.
b. Expanded sheet metal plates not less than 0.047 inch (1.2 mm) thick.
c. Cast-iron grill or grating.
d. Extruded load-bearing brick vents.
e. Hardware cloth of 0.035 inch (0.89 mm) wire or heavier.
- 30 -
f. Corrosion-resistant wire mesh, with the least dimension being one-eighth
(1/8) inch (3.2 mm) thick.
4. The installation of operable louvers is allowed.
Mechanical ventilation systems for spaces under below grade floors shall be designed by
a professional engineer, addressing moisture controls and by approved methods
considering the impact of negative pressures created by exhaust fans, clothes dryers and
similar appliances.
1203.4.2 Ventilated under-floor spaces. Floor systems above ventilated under-floor
spaces, or floors open to the exterior with no enclosed space below shall be insulated to
R-30 in accordance with the adopted International Energy Conservation Code Table
402.1.1. The floor system shall be sealed to prevent heat loss and air infiltration.
(57) A new Section 1211 Radon-Resistant Construction is hereby added to read as follows:
1211 – Radon-resistant construction
1211.1 Scope. The provisions of this Section shall apply to new R-2, R-3, R-4
Occupancies, new I-1 occupancies, and new I-2 nursing homes.
1211.1.1 Purpose. The purpose of this Section is to provide minimum requirements to
enhance the public safety, health and general welfare, through construction methods
designed and installed to resist entry of radon gas into the occupied spaces of buildings
regulated by this code.
1211.2 - Definitions
1211.2.1 General. For the purpose of this Section, the terms used shall be defined as
follows:
FOUNDATION DRAIN SYSTEM. A continuous length of drain tile, perforated pipe,
or filter mat extending around all or part of the internal or external perimeter of a
basement or crawl space footing designed to collect and drain away excess subsurface
water.
RADON. A naturally occurring, chemically inert, radioactive gas that is not detectable
by human senses, that can move readily through particles of soil and rock, and that can
accumulate under the slabs and foundations of homes where it can easily enter the living
space through construction cracks and openings.
SOIL-GAS-RETARDER. A continuous membrane of 3-mil (0.075 mm) cross-linked
polyethylene or other equivalent material used to retard the flow of soil gases into a
building.
- 31 -
SUBFLOOR. A concrete slab or other approved permanent floor system that directly
contacts the ground and is within the walls of the living spaces of the building.
SUB-MEMBRANE DEPRESSURIZATION SYSTEM. A system designed to achieve
lower sub-membrane air pressure relative to crawl space air pressure by use of a vent
drawing air from beneath the soil-gas-retarder membrane.
SUB-SLAB DEPRESSURIZATION SYSTEM (Passive). A system designed to
achieve lower sub-slab air pressure relative to indoor air pressure by use of a vent pipe
routed through the conditioned space of a building and connecting the sub-slab area with
outdoor air, thereby relying on the convective flow of air upward in the vent to draw air
from beneath the slab.
1211.3 - Requirements
1211.3.1 General. The following required construction methods are intended to resist
radon entry and prepare the building for post-construction radon mitigation.
1211.3.2 Subfloor preparation. A layer of gas-permeable material shall be placed under
all subfloors. The gas-permeable layer shall consist of one of the following methods
except that where fills of aggregate size less than that described in Method 1 are used
beneath a slab, Method 2,3, 4, or 5 must be used.
1. A uniform layer of clean aggregate, a minimum of 4 inches (102 mm) thick. The
aggregate shall consist of material that will pass through a 2 inch (51 mm) sieve
and be retained by a 1/4 inch (6.4 mm) sieve. In buildings where interior footings
or other barriers separate sub-grade areas, penetrations through the interior
footing or barrier equal to a minimum of 12 square inches (0.094 m
2
) per 10 feet
(3.048 m) of barrier length shall be provided. A minimum of 2 penetrations shall
be provided per separation and be evenly spaced along the separation.
Exception:
In buildings where interior footings or other barriers separate the sub-grade area, separate
radon vent pipes may be installed for each sub-grade area as specified in Section 1211.5.2
in place of penetrations through the barrier.
2. A foundation drain pipe system installed under concrete floor slab areas less than
2,000 square feet (186 m
2
), consisting of a continuous loop of minimum 3 inch
(76 mm) diameter perforated pipe shall be laid in the sub-grade with the top of the
pipe located 1-inch (25.4 mm) below the concrete slab. The pipe may be rigid or
flexible but shall have perforations fully around the circumference with a free air
space equal to 1.83 square inches per square foot (127 cm
2
/m
2
) of exterior pipe
surface area. Such pipe shall be wrapped with approved filter material to prevent
blocking of pipe perforations. The pipe loop shall be located inside of the exterior
perimeter foundation walls not more than 12 inches (305 mm) from the perimeter
- 32 -
foundation walls. In buildings where interior footings or other barriers separate
the sub-grade area, the loop of pipe shall penetrate or pass beneath such interior
footings or barriers. For slab areas greater than 2,000 square feet (186 m
2
) but less
than 4,000 square feet (372 m
2
), the preceding configuration may be used,
provided a minimum of 4 inch diameter (102 mm) pipe is installed. Slabs in
excess of 4,000 square feet (372 m
2
) shall have under them separate loops for
every additional 2,000 square feet (186 m
2
) of slab area when 3 inch (76 mm)
diameter pipe is used, or slabs may have separate loops provided for each
additional increment in area between 2,000 square feet (186 m
2
) and 4,000 square
feet (372 m
2
) when 4-inch (102 mm) diameter pipe is used.
3. A foundation drain soil gas collection mat system installed under concrete floor
slab areas of 2,000 square feet (186 m
2
) or less, consisting of a continuous
rectilinear loop of soil gas collection mat or drainage mat having minimum
dimensions of 1 inch in height by 12 inches in width (25.4 mm in height x 305
mm in width) and a nominal cross-sectional air flow area of 12 square inches
(0.0078 m
2
) may be laid on top of the sub-grade. The mat shall be constructed of a
matrix that allows for the movement of air through it and be capable of supporting
the concrete placed upon it. The matrix shall be covered by approved filter
material on all four sides to prevent dirt or concrete from entering the matrix. All
breaches and joints in the filter material shall be repaired prior to the placement of
the slab. The loop shall be located inside the exterior perimeter foundation walls
and within 12 inches (305 mm) from the perimeter foundation walls. In buildings
where interior footings or other barriers separate the sub-grade area, the mat shall
penetrate these interior footings or barriers to form a continuous loop around the
exterior perimeter.
Slabs larger than 2,000 square feet (186 m
2
) but less than 4,000 square feet (372
m
2
) shall have under them an additional strip of mat that bisects the loop forming
two areas approximately equally divided by the two halves of the rectilinear loop.
Slabs larger than 4,000 square feet (372 m
2
) shall have separate loops for each
2,000 (186 m
2
) square feet, or for each 4,000 square feet (372 m2) if a loop is
bisected as specified in the preceding configuration.
4. A uniform layer of sand (native or fill), a minimum of 4 inches (102 mm) thick,
overlain by a layer or strips of geo-textile drainage matting designed to allow the
lateral flow of soil gases.
5. Other materials, systems or floor designs with demonstrated capability to permit
- 33 -
filled with a polyurethane caulk or equivalent sealant applied in accordance with the
manufacturer's recommendations.
1211.3.3.2 Concrete joints. All control joints, isolation joints, construction joints and
any other joints in concrete slabs or between slabs and foundation walls shall be sealed
with a caulk or sealant. Gaps and joints shall be cleared of loose material and filled with
polyurethane caulk or other elastomeric sealant applied in accordance with the
manufacturer's recommendations.
1211.3.3.3 Condensate drains. Condensate drains shall be trapped or routed through
non-perforated pipe to daylight.
1211.3.3.4 Sumps. Sump pits open to soil or serving as the termination point for sub-slab
or exterior drain tile loops shall be covered with a gasketed or otherwise sealed lid.
Sumps used as the suction point in a sub-slab depressurization system shall have a lid
designed to accommodate the vent pipe. Sumps used as a floor drain shall have a lid
equipped with a trapped inlet and view port.
1211.3.3.5 Foundation walls. Hollow block masonry foundation walls shall be
constructed with either a continuous course of solid masonry, one course of masonry
grouted solid, or a solid concrete beam at or above finished ground surface to prevent
passage of air from the interior of the wall into the living space. Where a brick veneer or
other masonry ledge is installed, the course immediately below that ledge shall be sealed.
Joints, cracks or other openings around all penetrations of both exterior and interior
surfaces of masonry block or wood foundation walls below the ground surface shall be
filled with polyurethane caulk or equivalent sealant. Penetrations of concrete walls shall
be filled.
1211.3.3.6 Dampproofing. The exterior surfaces of portions of concrete and masonry
block walls below the ground surface shall be damp-proofed in accordance with Section
1805.
1211.3.3.7 Air-handling units. Air-handling units in crawl spaces shall be sealed to
prevent air from being drawn into the unit.
Exception: Units with gasketed seams or units that are otherwise sealed by the
manufacturer to prevent leakage.
1211.3.3.8 Ducts. Ductwork passing through or beneath a slab shall be of seamless
material unless the air-handling system is designed to maintain continuous positive
pressure within such ducting. Joints in such ductwork shall be sealed to prevent air
leakage. Ductwork located in crawl spaces shall have all seams and joints sealed by
closure systems in accordance with the International Mechanical Code.
1211.3.4 Sub-membrane depressurization system. In buildings with interior structural
floors directly above under-floor spaces containing exposed soil surfaces that are not
- 34 -
protected by a sub-slab depressurization system, the following components of sub-
membrane depressurization system shall be installed during construction.
Exception: Buildings in which an approved mechanical ventilation system complying
with Section 1203 or such other equivalent system that provides equivalent
depressurization across the entire sub-membrane area as determined by the building
official is installed in the under-floor spaces.
1211.3.4.1 Ventilation. Crawl spaces and similar under-floor spaces shall be provided
with ventilation complying with Section 1203.
1211.3.4.2 Soil-gas-retarder. The exposed soil in under-floor spaces shall be covered
with a continuous layer of soil-gas-retarder. Such groundcover joints shall overlap 6
inches (152 mm) and be sealed or taped. The edges of the groundcover shall extend a
minimum of 6 inches (152 mm) up onto all foundation walls enclosing the under-floor
space and shall be attached and sealed to foundation walls in an approved manner.
1211.3.4.3 Vent pipe riser. A plumbing tee or other approved connection shall be
inserted horizontally beneath the sheeting and connected to a 3- or 4-inch-diameter (76
mm or 102 mm) fitting with a vertical vent pipe installed through the sheeting. The vent
pipe shall be extended up through the building floors, and shall terminate at least 12
inches (305 mm) above the roof in a location at least 10 feet (3.048 m) away from any
window or other opening into the conditioned spaces of the building at a point that is less
than 2 feet (0.610 m) below the exhaust point and 10 feet (3.048 m) from any window or
other opening in adjoining or adjacent buildings.
1211.3.5 Sub-slab depressurization system. The following components of a sub-slab
depressurization system shall be installed during construction under basement or slab-on-
grade floors.
1211.3.5.1 Vent pipe riser. A minimum 3-inch-diameter (76 mm) ABS, PVC or
equivalent gas-tight pipe shall be embedded vertically into the sub-slab aggregate or other
permeable material before the slab is cast. A 'T' fitting or equivalent method shall be used
to ensure that the pipe opening remains within the sub-slab permeable material.
Alternatively, the 3-inch (76 mm) pipe shall be inserted directly into an interior perimeter
drain tile loop or through a sealed sump cover where the sump is exposed to the sub-slab
aggregate or connected to it through a drainage system.
All vent pipes shall be extended up through the building floors and shall terminate at least
12 inches (305 mm) above the surface of the roof in a location at least 10 feet (3.048 m)
away from any window, air intake, or other opening into the conditioned spaces of the
building at a point that is less than 2 feet (0.610 m) below the exhaust point, and 10 feet
(3.048 m) from any window or other opening in adjoining or adjacent buildings. The
discharge end of vent pipe terminations shall be unobstructed and protected from small
animal entry with a corrosion-resistant screen having openings between ¼ inch (6.4 mm)
and ½ inch (12.7 mm).
- 35 -
1211.3.5.2 Multiple vent pipes. In buildings where interior footings or other barriers
separate the sub-slab aggregate or other gas-permeable material, each area shall be fitted
with an individual vent pipe. Vent pipes shall connect to a single vent that terminates
above the roof or, in the alternative, each individual vent pipe shall terminate separately
above the roof.
1211.3.6 Vent pipe drainage. All components of the radon vent pipe system shall be
installed to provide positive drainage to the ground beneath the slab or soil-gas retarder.
1211.3.7 Vent pipe accessibility. Radon vent pipes shall be accessible for fan installation
through an attic or other area outside the habitable space.
Exception: The radon vent pipe need not be accessible in an attic space where an
approved roof-top electrical supply is provided.
1211.3.8 Vent pipe identification and notification. All exposed and visible interior
radon vent pipes shall be conspicuously identified with at least one label on each floor
and in attics provided with access openings. The label shall read substantially as follows:
Radon Reduction System. In addition to the preceding label, a notice shall be placed in a
conspicuous area near the vent pipe that includes the following statement:
“This radon reduction system is not required to be tested and is a 'passive' system,
relying entirely on natural ventilation. Occupants are advised to test for radon and take
remedial action as necessary by installing a continuously operating fan located in the
vent pipe (access typically provided in the attic) and connected to the nearby provided
electrical outlet. Call 1-800-767-radon for more information.”
1211.3.9 Combination foundations. Combination basement/crawl space or slab-on-
grade/crawl space foundations shall have separate radon vent pipes installed in each type
of foundation area. Each radon vent pipe shall terminate above the roof or shall be
connected to a single vent that terminates above the roof.
1211.3.10 Building depressurization. Joints in air ducts and plenums in unconditioned
spaces shall be substantially air tight and permanently sealed with an approved sealant,
mastic, or other approved methods. Thermal envelope air infiltration requirements shall
comply with the energy conservation provisions in the energy conservation code
currently enacted by the City. Firestopping shall be in conformance with the most recent
general building code enacted by the City.
1211.3.11 Provisions for future depressurization fan installation. Permanent
provisions shall be made for the future installation of an in-line fan to be connected to
every radon vent pipe. Such designated fan locations shall be outside of the conditioned
envelope of the building, such as in the attic, garage and similar locations, excluding
crawl spaces and other interior under-floor spaces. Designated locations shall
accommodate an unobstructed permanent cylindrical space with the following minimum
dimensions: 12 inches (305 mm) measured radially around the radon vent pipe along a
- 36 -
vertical distance of 30 inches (760 mm). Designated fan locations shall be permanently
accessible for servicing and maintenance. An electrical circuit shall be provided within 4
feet (1.219 m) of and within sight from designated fan locations. Such circuit shall have a
means of positive disconnection and be terminated in an approved electrical outlet in
accordance with the applicable current electric code.
1211.3.11.1 Depressurization fan system activation. When a passive system
constructed in accordance with this code is to be converted to an active system, an
approved in-line fan shall be installed in a designated fan location as specified in Section
1211.11.1. Additionally, an approved permanent electric light fixture and in-line pipe
couplings that facilitate fan replacement shall be provided. The in-line fan shall be
designed to operate continuously for a period of not less than 5 years and have a
minimum air-flow rating as established by the building official. A readily accessible
manometer or other approved warning device that notifies occupants of a fan malfunction
by a visible or audible signal shall be installed within the dwelling unit.
(58) A new Section 1404.9.1 Vinyl siding on new buildings is hereby added to read as
follows:
Section 1404.9 Vinyl siding shall not be installed on new buildings within the limits of
the City of Fort Collins. [local amendment to 2012 IBC]
1404.9 Vinyl siding. Vinyl siding shall be certified and labeled as conforming to the
requirements of ASTM D 3679 by an approved quality control agency.
Section 1404.9.1 Vinyl siding on new buildings. Vinyl sidings on new buildings shall
be installed over one-hour fire-rated assemblies listed for exterior fire exposure, in both
the vertical and horizontal plane.
(59) A new Section 1404.12.3 Polypropylene siding on new buildings is hereby added to read
as follows:
Section 1404.12 Polypropylene siding shall not be installed on new buildings within the
limits of the City of Fort Collins.[local amendment to 2012 IBC]
1404.12 Polypropylene siding. Polypropylene siding shall be certified and labeled as
conforming to the requirements of ASTM D 7254 and those of Section 1404.12.1 or
1404.12.2 by an approved quality control agency. Polypropylene siding shall be installed
in accordance with the requirements of Section 1405.18 and in accordance with the
manufacturer’s installation instructions. Polypropylene siding shall be secured to the
building so as to provide weather protection for the exterior walls of the building.
1404.12.1 Flame spread index. The certification of the flame spread index shall be
accompanied by a test report stating that all portions of the test specimen ahead of the
flame front remained in position during the test in accordance with ASTM E 84 or UL
723.
- 37 -
1404.12.2 Fire separation distance. The fire separation distance between a building with
polypropylene siding and the adjacent building shall be no less than 10 feet (3048 mm).
1404.12.3 Polypropylene siding on new buildings. Polypropylene on new buildings
shall be installed over one-hour fire-rated assemblies listed for exterior fire exposure, in
both the vertical and horizontal plane.
(60) A new Section 1405.13.2 Fenestration installation is added to read as follows:
. . .
1405.13.2 Fenestration installation. For all new construction and additions, all new
fenestration installations shall be in accordance with American Architectural
Manufacturers Association (AAMA) Standards/Specifications for Windows, Doors and
Skylights and shall be supervised and inspected by an individual certified as an
Installation Master by Architectural Testing, Inc. (ATI), or other nationally recognized
agency.
(61) Section 1503.4 Roof drainage is hereby retained in its entirety with the following
amendments:
1503.4 Roof drainage. All buildings shall have a controlled method of water disposal
from roofs that will collect and discharge roof drainage to the ground surface at least 5
feet (1524 mm) from foundation walls or to an approved drainage system. Design and
installation of roof drainage systems shall comply with Section 1503 of this code and
Sections 1106 and 1108, as applicable, of and the International Plumbing Code.
. . .
(62) Section 1503.6 Crickets and saddles is hereby retained in its entirety with the following
amendment to add a new exception number two:
1503.6 Crickets and saddles. A cricket or saddle shall be installed on the ridge side of
any chimney or penetration greater than 30 inches (762 mm) wide as measured
perpendicular to the slope. Cricket or saddle coverings shall be sheet metal or of the same
material as the roof covering.
Exceptions:
1. Unit skylights installed in accordance with Section 2405.5 and flashed in
accordance with the manufacturer’s instructions shall be permitted to be installed
without a cricket or saddle.
2. Re-roofing.
- 38 -
(63) Section 1505.1 General is hereby deleted in its entirety and the following is hereby
added in lieu thereof:
1505.1 General. Roof assemblies shall be divided into the classes defined below. Class
A, B and C roof assemblies and roof coverings required to be listed by this section shall
be tested in accordance with ASTM E 108 or UL 790. In addition, fire-retardant-treated
wood roof coverings shall be tested in accordance with ASTM D 2898. The minimum
roof coverings installed on buildings shall comply with Table 1505.1 based on the type of
construction of the building.
1505.1 New Construction. The roof-covering classification on any new structure
regulated by this code shall be Class A.
Exceptions:
1. Noncombustible roof coverings as defined in Section 1507.3, 1507.4, 1507.5 may
be applied in accordance with the manufacturer's specifications in place of a fire-
retardant roofing assembly.
2. Any Class B or Class C roof covering may be applied on any new construction
that is added to an existing building classified as a Group R, Division 3
Occupancy, provided the roof extremities of such existing building and new
construction are located a minimum distance of 5 feet from the nearest adjacent
property line and are a minimum distance of 10 feet from any other building.
3. Skylights and sloped glazing that comply with Chapter 24 or Section 2610.
(64) Table 1505.1, Minimum Roof Covering Classifications for Types of Construction, is
hereby deleted in its entirety.
(65) Section 1507.2.1 Deck requirements is hereby retained in its entirety with the following
amendments :
1507.2.1 Deck Requirements. Asphalt shingles shall be fastened to solidly sheathed
decks. Gaps in the solidly sheathed or plank decking shall not exceed 1/8 inch.
(66) A new Section 1507.2.9.4 Sidewall flashing is hereby added to read as follows:
1507.2.9.4 Sidewall flashing. Flashing against a vertical sidewall shall be by the step-
flashing method. The flashing shall be a minimum of 4 inches (102 mm) high and 4
inches (102 mm) wide. At the end of the vertical sidewall the step flashing shall be turned
out in a manner that directs water away from the wall and onto the roof and/or gutter.
Exception: Re-roofing where step flashing would require removal of siding material,
provided adequate flashing is installed.
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(67) A new Section 1507.2.9.5 Other flashing is hereby added to read as follows:
1507.2.9.5 Other flashing. Flashing against a vertical front wall, as well as soil stack,
vent pipe and chimney flashing shall be applied according to the asphalt shingle
manufacturer’s printed instructions.
(68) Section 1511.1 General is hereby retained in its entirety with the following amendment
adding two paragraphs at the end after the Exceptions, to read as follows:
. . .
No portion of an existing nonrated roof covering may be permanently replaced or
covered with more than one square of nonrated roof covering.
Any existing roof covering system may be replaced with a roof covering of the same
materials and classification, provided the replacement roof covering has a minimum
rating of Class C.
(69) A new Section 1608.2.1 Roof snow load, is hereby added to read as follows;
1608.2.1 Roof Snow Loads. Roof snow loads shall be a minimum of 30 psf.
(70) Section 1609.3 Ultimate design wind speed is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
1609.3 Ultimate design wind speed. The ultimate design wind speed, Vult, in mph, for
the determination of the wind loads shall be determined by Figures 1609.3(1), 1609.3(2)
and 1609.3(3). The ultimate design wind speed, Vult, for use in the design of Risk
Category II buildings and structures shall be obtained from Figure 1609.3(1). The
ultimate design wind speed, Vult, for use in the design of Risk Category III and IV
buildings and structures shall be obtained from Figure 1609.3(2). The ultimate design
wind speed, Vult, for use in the design of Risk Category I buildings and structures shall
be obtained from Figure 1609.3(3). The ultimate design wind speed, Vult, for the special
wind regions indicated near mountainous terrain and near gorges shall be in accordance
with local jurisdiction requirements. The ultimate design wind speeds, Vult, determined
by the local jurisdiction shall be in accordance with Section 26.5.1 of ASCE 7.
In nonhurricane-prone regions, when the ultimate design wind speed, Vult, is estimated
from regional climatic data, the ultimate design wind speed, Vult, shall be determined in
accordance with Section 26.5.3 of ASCE 7.
1609.3 Basic wind speed. The basic wind speed, in mph, for the determination of the
wind loads shall be 100 miles per hour (161 kph) Vasd or 129 miles per hour (208 kph)
Vult.
(71) A new Section 1804.3.1 Final Grading is hereby added to read as follows:
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1804.3.1 Final Grading. Final grading adjacent to the foundation and above utility
trenches shall be compacted sufficiently and in such a manner that it is not undermined or
subject to significant settlement or displacement due to improper placement of backfill.
(72) Section 2406.4.7 Glazing adjacent to the bottom stair landing is hereby retained in its
entirety with the following amendments:
2406.4.7 Glazing adjacent to the bottom stair landings. Glazing adjacent to the stair
landings at the bottom of a stairway where the glazing is less than 60 36 inches (1524 914
mm) above the landing and within a 60 inches (1524 mm) horizontal arc that is less than
180 degrees (3.14 rad) from the horizontally of the top or bottom tread nosing shall be
considered a hazardous location.
Exception: The glazing that is protected by a guard complying with Sections 1015 1013
and 1607.8 where the plane of the glass is greater more than 18 inches (457 mm) from the
guard.
(73) A new Section 2902.1.3 Touch-free toilet facilities is hereby added to read as follows:
2902.1.3 Touch-free toilet facilities. Toilet facilities installed for occupancies associated
with food preparation or food service to the public shall be provided with:
1. Automatic touch-free water control valves on lavatories.
2. Automatic touch-free paper towel dispensers.
3. Toilet facilities exit doors that allow exiting without requiring touching by hand
of any door hardware such as knobs, levers, sliding bolts, latches and similar
devices.
Exception: Toilet facilities designed as a single occupant use may be provided with exit
door locking hardware to afford privacy, doors may swing inward or outward.
(74) Section 2902.2 Separate facilities is hereby retained in its entirety with the following
amendments:
2902.2 Separate facilities. Where plumbing fixtures are required, separate facilities shall
be provided for each sex.
Exceptions:
1. Separate facilities shall not be required for dwelling units and sleeping units.
2. Separate facilities shall not be required in structures or tenant spaces with a total
occupant load, including both employees and customers, of 15 30 or fewer.
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3. Separate facilities shall not be required in mercantile occupancies in which the
maximum occupant load is 100 or less.
4. Multiple single-user Unisex facilities may be used provided that the total fixture
count as calculated per 2902.1 is satisfied.
(75) Section 2902.3.1 Access is hereby retained in its entirety with the following amendments:
2902.3.1 Access. The route to the public toilet facilities required by Section 2902.3 shall
not pass through kitchens, storage rooms, closets, or spaces used for similar purposes. A
clearly signed unobstructed access path shall be provided, leading directly from the
public customer area to the toilet facilities. Access to the required facilities shall be from
within the building or from the exterior of the building. Routes shall comply with the
accessibility requirements section of this code. The public shall have access to the
required toilet facilities at all times that the building is occupied and without the need to
ask for permission to use the toilet facilities.
(76) Section 3109 Swimming pool enclosures and safety devices is hereby deleted in its
entirety and the following is hereby added in lieu thereof:
SECTION 3109 SWIMMING POOL ENCLOSURES AND SAFETY DEVICES
3109.1 General.
Swimming pools shall comply with the requirements of Sections 3109.2 through 3109.5
and other applicable sections of this code.
3109.2 Definition.
The following term is defined in Chapter 2:
SWIMMING POOLS.
3109.3 Public swimming pools.
Public swimming pools shall be completely enclosed by a fence not less than 4 feet (1290
mm) in height or a screen enclosure. Openings in the fence shall not permit the passage
of a 4-inch-diameter (102 mm) sphere. The fence or screen enclosure shall be equipped
with self-closing and self-latching gates.
3109.4 Residential swimming pools.
Residential swimming pools shall be completely enclosed by a barrier complying with
Sections 3109.4.1 through 3109.4.3.
Exception: A swimming pool with a power safety cover or a spa with a safety cover
complying with ASTM F 1346 need not comply with this section.
3109.4.1 Barrier height and clearances.
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The top of the barrier shall be not less than 48 inches (1219 mm) above grade measured
on the side of the barrier that faces away from the swimming pool. The vertical clearance
between grade and the bottom of the barrier shall be not greater than 2 inches (51 mm)
measured on the side of the barrier that faces away from the swimming pool. Where the
top of the pool structure is above grade, the barrier is authorized to be at ground level or
mounted on top of the pool structure, and the vertical clearance between the top of the
pool structure and the bottom of the barrier shall be not greater than 4 inches (102 mm).
3109.4.1.1 Openings.
Openings in the barrier shall not allow passage of a 4-inch-diameter (102 mm) sphere.
3109.4.1.2 Solid barrier surfaces.
Solid barriers which do not have openings shall not contain indentations or protrusions
except for normal construction tolerances and tooled masonry joints.
3109.4.1.3 Closely spaced horizontal members.
Where the barrier is composed of horizontal and vertical members and the distance
between the tops of the horizontal members is less than 45 inches (1143 mm), the
horizontal members shall be located on the swimming pool side of the fence. Spacing
between vertical members shall be not greater than 13/4 inches (44 mm) in width. Where
there are decorative cutouts within vertical members, spacing within the cutouts shall be
not greater than 13/4 inches (44 mm) in width.
3109.4.1.4 Widely spaced horizontal members.
Where the barrier is composed of horizontal and vertical members and the distance
between the tops of the horizontal members is 45 inches (1143 mm) or more, spacing
between vertical members shall be not greater than 4 inches (102 mm). Where there are
decorative cutouts within vertical members, spacing within the cutouts shall be not
greater than 13/4 inches (44 mm) in width.
3109.4.1.5 Chain link dimensions.
Mesh size for chain link fences shall be not greater than a 21/4-inch square (57 mm
square) unless the fence is provided with slats fastened at the top or the bottom that
reduce the openings to not more than 13/4 inches (44 mm).
3109.4.1.6 Diagonal members.
Where the barrier is composed of diagonal members, the opening formed by the diagonal
members shall be not greater than 13/4 inches (44 mm).
3109.4.1.7 Gates.
Access doors or gates shall comply with the requirements of Sections 3109.4.1.1 through
3109.4.1.6 and shall be equipped to accommodate a locking device. Pedestrian access
doors or gates shall open outward away from the pool and shall be self-closing and have a
self-latching device. Doors or gates other than pedestrian access doors or gates shall have
a self-latching device. Release mechanisms shall be in accordance with Sections 1010.1.9
and 1109.13. Where the release mechanism of the self-latching device is located less than
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54 inches (1372 mm) from the bottom of the door or gate, the release mechanism shall be
located on the pool side of the door or gate 3 inches (76 mm) or more, below the top of
the door or gate, and the door or gate and barrier shall be without openings greater than
1/2 inch (12.7 mm) within 18 inches (457 mm) of the release mechanism.
3109.4.1.8 Dwelling wall as a barrier.
Where a wall of a dwelling serves as part of the barrier, one of the following shall apply:
1. Doors with direct access to the pool through that wall shall be equipped with an
alarm that produces an audible warning when the door or its screen, if present, are
opened. The alarm shall be listed and labeled in accordance with UL 2017. In
dwellings not required to be Accessible units, Type A units or Type B units, the
deactivation switch shall be located 54 inches (1372 mm) or more above the
threshold of the door. In dwellings required to be Accessible units, Type A units
or Type B units, the deactivation switch shall be located not higher than 54 inches
(1372 mm) and not less than 48 inches (1219 mm) above the threshold of the
door.
2. The pool shall be equipped with a power safety cover that complies with ASTM F
1346.
3. Other means of protection, such as self-closing doors with self-latching devices,
which are approved, shall be accepted so long as the degree of protection afforded
is not less than the protection afforded by Item 1 or 2 above.
3109.4.1.9 Pool structure as barrier.
Where an above-ground pool structure is used as a barrier or where the barrier is mounted
on top of the pool structure, and the means of access is a ladder or steps, then the ladder
or steps either shall be capable of being secured, locked or removed to prevent access, or
the ladder or steps shall be surrounded by a barrier that meets the requirements of
Sections 3109.4.1.1 through 3109.4.1.8. Where the ladder or steps are secured, locked or
removed, any opening created shall not allow the passage of a 4-inch-diameter (102 mm)
sphere.
3109.4.2 Indoor swimming pools.
Walls surrounding indoor swimming pools shall not be required to comply with Section
3109.4.1.8.
3109.4.3 Prohibited locations.
Barriers shall be located so as to prohibit permanent structures, equipment or similar
objects from being used to climb the barriers.
3109.5 Entrapment avoidance.
Suction outlets shall be designed and installed in accordance with ANSI/APSP-7.
SECTION 3109
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BARRIER REQUIREMENTS
3109.1 General.
The provisions of this Section shall apply to the design of barriers for pools and spas.
These design controls are intended to provide protection against the potential drowning
and near drowning by restricting access to such pools or spas. These requirements
provide an integrated level of protection against potential drowning through the use of
physical barriers and warning devices.
Exceptions:
1. Spas and hot tubs with a lockable safety cover that complies with ASTM F 1346.
2. Swimming pools with a powered safety cover that complies with ASTM F 1346.
3109.2 Outdoor swimming pools and spas.
Outdoor pools and spas and indoor swimming pools shall be surrounded by a barrier that
complies with Sections 3109.2.1 through 3109.7.
3109.2.1 Barrier height and clearances.
Barrier heights and clearances shall be in accordance with all of the following:
1. The top of the barrier shall be not less than 48 inches (1219 mm) above grade
where measured on the side of the barrier that faces away from the pool or spa.
Such height shall exist around the entire perimeter of the barrier and for a distance
of 3 feet (914 mm) measured horizontally from the outside of the required barrier.
2. The vertical clearance between grade and the bottom of the barrier shall not
exceed 2 inches (51 mm) for grade surfaces that are not solid, such as grass or
gravel, where measured on the side of the barrier that faces away from the pool or
spa.
3. The vertical clearance between a surface below the barrier to a solid surface, such
as concrete, and the bottom of the required barrier shall not exceed 4 inches (102
mm) where measured on the side of the required barrier that faces away from the
pool or spa.
4. Where the top of the pool or spa structure is above grade, the barrier shall be
installed on grade or shall be mounted on top of the pool or spa structure. Where
the barrier is mounted on the top of the pool or spa, the vertical clearance between
the top of the pool or spa and the bottom of the barrier shall not exceed 4 inches
(102 mm).
3109.2.2 Openings.
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Openings in the barrier shall not allow passage of a 4-inch-diameter (102 mm) sphere.
3109.2.3 Solid barrier surfaces.
Solid barriers that do not have openings shall not contain indentations or protrusions that
form handholds and footholds, except for normal construction tolerances and tooled
masonry joints.
3109.2.4 Mesh fence as a barrier.
Mesh fences, other than chain link fences in accordance with Section 3109.2.7, shall be
installed in accordance with the manufacturer’s instructions and shall comply with the
following:
1. The bottom of the mesh fence shall be not more than 1 inch (25 mm) above the
deck or installed surface or grade.
2. The maximum vertical clearance from the bottom of the mesh fence and the solid
surface shall not permit the fence to be lifted more than 4 inches (102 mm) from
grade or decking.
3. The fence shall be designed and constructed so that it does not allow passage of a
4-inch (102 mm) sphere under any mesh panel. The maximum vertical clearance
from the bottom of the mesh fence and the solid surface shall not be more than 4
inches (102 mm) from grade or decking.
4. An attachment device shall attach each barrier section at a height not lower than
45 inches (1143 mm) above grade. Common attachment devices include, but are
not limited to, devices that provide the security equal to or greater than that of a
hook-and-eye type latch incorporating a spring-actuated retaining lever such as a
safety gate hook.
5. Where a hinged gate is used with a mesh fence, the gate shall comply with
Section 3109.3.
6. Patio deck sleeves such as vertical post receptacles that are placed inside the patio
surface shall be of a nonconductive material.
7. Mesh fences shall not be installed on top of on ground residential pools.
3109.2.5 Closely spaced horizontal members.
Where the barrier is composed of horizontal and vertical members and the distance
between the tops of the horizontal members is less than 45 inches (1143 mm), the
horizontal members shall be located on the pool or spa side of the fence. Spacing between
vertical members shall not exceed 1 3/4 inches (44 mm) in width. Where there are
decorative cutouts within vertical members, spacing within the cutouts shall not exceed 1
3/4 inches (44 mm) in width.
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3109.2.6 Widely spaced horizontal members.
Where the barrier is composed of horizontal and vertical members and the distance
between the tops of the horizontal members is 45 inches (1143 mm) or more, spacing
between vertical members shall not exceed 4 inches (102 mm). Where there are
decorative cutouts within vertical members, the interior width of the cutouts shall not
exceed 13/4 inches (44 mm).
3109.2.7 Chain link dimensions.
The maximum opening formed by a chain link fence shall be not more than 1 3/4 inches
(44 mm). Where the fence is provided with slats fastened at the top and bottom which
reduce the openings, such openings shall be not more than 1 3/4 inches (44 mm).
3109.2.8 Diagonal members.
Where the barrier is composed of diagonal members, the maximum opening formed by
the diagonal members shall be not more than1 3/4 inches (44 mm). The angle of diagonal
members shall be not greater than 45 degrees (0.79 rad) from vertical.
3109.2.9 Clear zone.
There shall be a clear zone of not less than 36 inches (914 mm) between the exterior of
the barrier and any permanent structures or equipment such as pumps, filters and heaters
that can be used to climb the barrier.
3109.2.10 Poolside barrier setbacks.
The pool or spa side of the required barrier shall be not less than 20 inches (508 mm)
from the water’s edge.
3109.3 Gates.
Access gates shall comply with the requirements of Sections 3109.3.1 through 3109.3.3
and shall be equipped to accommodate a locking device. Pedestrian access gates shall
open outward away from the pool or spa, shall be self-closing and shall have a self-
latching device.
3109.3.1 Utility or service gates.
Gates not intended for pedestrian use, such as utility or service gates, shall remain locked
when not in use.
3109.3.2 Double or multiple gates.
Double gates or multiple gates shall have at least one leaf secured in place and the
adjacent leaf shall be secured with a self-latching device. The gate and barrier shall not
have openings larger than 1/2 inch (12.7 mm) within 18 inches (457 mm) of the latch
release mechanism. The self-latching device shall comply with the requirements of
Section 305.3.3.
3109.3.3 Latches.
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Where the release mechanism of the self-latching device is located less than 54 inches
(1372 mm) from grade, the release mechanism shall be located on the pool or spa side of
the gate not less than 3 inches (76 mm) below the top of the gate, and the gate and barrier
shall not have openings greater than 1/2 inch (12.7 mm) within 18 inches (457 mm) of
the release mechanism.
3109.4 Structure wall as a barrier.
Where a wall of a dwelling or structure serves as part of the barrier and where doors or
windows provide direct access to the pool or spa through that wall, one of the following
shall be required:
1. Operable windows having a sill height of less than 48 inches (1219 mm) above
the indoor finished floor and doors shall have an alarm that produces an audible
warning when the window, door or their screens are opened. The alarm shall be
listed and labeled as a water hazard entrance alarm in accordance with UL 2017.
In dwellings or structures not required to be Accessible units, Type A units or
Type B units, the operable parts of the alarm deactivation switches shall be
located 54 inches (1372 mm) or more above the finished floor. In dwellings or
structures required to be Accessible units, Type A units or Type B units, the
operable parts of the alarm deactivation switches shall be located not greater than
54 inches (1372 mm) and not less than 48 inches (1219 mm) above the finished
floor.
2. A safety cover that is listed and labeled in accordance with ASTM F 1346 is
installed for the pools and spas.
3. An approved means of protection, such as self-closing doors with self-latching
devices, is provided. Such means of protection shall provide a degree of
protection that is not less than the protection afforded by Item 1 or 2.
3109.5 On ground residential pool structure as a barrier.
An on ground residential pool wall structure or a barrier mounted on top of an on ground
residential pool wall structure shall serve as a barrier where all of the following
conditions are present:
1. Where only the pool wall serves as the barrier, the bottom of the wall is on grade,
the top of the wall is not less than 48 inches (1219 mm) above grade for the entire
perimeter of the pool, the wall complies with the requirements of Section 3109.2
and the pool manufacturer allows the wall to serve as a barrier.
2. Where a barrier is mounted on top of the pool wall, the top of the barrier is not
less than 48 inches (1219 mm) above grade for the entire perimeter of the pool,
and the wall and the barrier on top of the wall comply with the requirements of
Section 3109.2.
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3. Ladders or steps used as means of access to the pool are capable of being secured,
locked or removed to prevent access except where the ladder or steps are
surrounded by a barrier that meets the requirements of Section 3109.5.
4. Openings created by the securing, locking or removal of ladders and steps do not
allow the passage of a 4inch (102 mm) diameter sphere.
5. Barriers that are mounted on top of on ground residential pool walls are installed
in accordance with the pool manufacturer’s instructions.
3109.6 Natural barriers.
In the case where the pool or spa area abuts the edge of a lake or other natural body of
water, public access is not permitted or allowed along the shoreline, and required barriers
extend to and beyond the water’s edge not less than 18 inches (457 mm), a barrier is not
required between the natural body of water shoreline and the pool or spa.
3109.7 Natural topography.
Natural topography that prevents direct access to the pool or spa area shall include but
not be limited to mountains and natural rock formations. A natural barrier as approved by
the building official shall be acceptable provided that the degree of protection is not less
than the protection afforded by the requirements of Sections 3109.2 through 3109.5.
3109.8 Entrapment avoidance.
Suction outlets shall be designed and installed in accordance with ANSI/APSP-7.
3109.9 Barriers around decorative pools, fountains, and ponds.
Decorative pools, fountains, and ponds that can contain water deeper than 24 inches (610
mm), shall be protected by barriers installed in accordance with Section 3109.
(77) Chapter 35 Referenced Standards is hereby amended to add, in alphabetical order, the
following additional referenced standards:
. . .
CDPH California Department of Public Health
1615 Capitol Avenue
Sacramento, CA 95814
CDPH 01350
Standard Method for Testing VOC emissions from indoor sources
Referenced in Amended 12 IBC Section 3603.2 Low-volatile organic
compound (VOC) materials
. . .
FSC Forest Stewardship Council U.S. (FSC-US)
- 49 -
212 Third Avenue North, Suite 504
Minneapolis, MN 55401
. . .
GEI GREENGUARD Environmental Institute
2211 Newmarket Parkway, Suite 110
Marietta, GA 30067
GGPS.001.GREENGUARD IAQ Standard for Building Materials, Finishes and
Furnishings
Referenced in Amended 12 IBC Section 3603.2 Low-volatile organic
compound (VOC) materials
Green Seal®
1001 Connecticut Avenue, NW
Suite 827
Washington, DC 20036-5525
GS-11 Paintings and Coatings
GS-43 Recycled Content Latex Paints
Referenced in Amended 12 IBC Section 3603.2
Low-volatile organic compound (VOC) materials
. . .
(78) A new Chapter 36 Sustainable Building Construction Practices is hereby added to read
as follows:
Chapter 36 Sustainable Building Construction Practices
3601 General
3601.1 Scope. The provisions of this chapter shall govern sustainable building
construction practices for new construction and additions and remodels over 5,000 square
feet that require a building permit, unless otherwise noted.
3602 Resource Efficiency
3602.1 Construction waste management. For new buildings and additions over 2,500
square feet or remodels over 2,500 square feet, a construction waste management plan
acceptable to the building official that includes recycling of concrete and masonry, wood,
metals and cardboard, is required at the time of application for a building permit. The
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construction waste management plan shall be implemented and conspicuously posted on
the construction site. Compliance shall be certified by the hauler through receipts and
signed affidavits. Substantive changes to the plan shall be subject to prior approval by the
building official.
3602.1.1 Building demolitions. Buildings or portions of buildings that are removed shall
be processed in such a way as to safely remove all asbestos and lead paint contaminants.
All metals, asphalt, concrete and masonry that are free of asbestos and lead paint shall be
recycled, and where possible, all remaining materials, such as doors, windows, cabinets,
fixtures, and wood, shall be recycled. A construction waste management plan shall be
submitted at time of demolition permit. Compliance shall be certified by the hauler
through receipts and signed affidavits.
3603 Indoor Environmental Quality (IEQ)
3603.1 Indoor Air Quality (IAQ)
3603.1.1 Heating, Ventilating, and Air Conditioning Design. Prior to and during
construction, reasonable efforts shall be made to minimize the release of particulates and
accumulation of debris, and the specific requirements of this Section shall apply.
3603.1.1.1 Air handling system access. The arrangement and location of air handling
system components including, but not limited to, air handler units, fans, coils and
condensate pans, shall allow access for cleaning and repair of the air handling surfaces of
such components. Piping, conduits, and other building components shall not be located
so as to obstruct the required access.
3603.1.1.2 Durability of air handling surfaces. Surfaces exposed to airflow within air
handling systems shall be constructed of materials that are resistant to deterioration and
will not break away, crack, peel, flake off, or show evidence of delamination or continued
erosion when tested in accordance with the erosion test in UL 181.
3603.1.1.3 Airstream surfaces. Materials exposed to airflow within ducts, within air
plenums, or on top of suspended ceilings, shall not break away, crack, peel, flake off, or
show evidence of delamination or continued erosion when tested in accordance with the
erosion test in UL 181.
3603.1.2 New Building and first time completed tenant finish spaces pollutant flush-
out. After all interior finishes are installed, the building or space shall be flushed out by
ventilating at a minimum rate of 0.30 cfm per ft
2
of outside air or the design outdoor
airflow rate determined from the IMC, whichever is greater, for at least 14 days while
maintaining an internal temperature of at least 60°F, and relative humidity not higher
than 60 percent. Occupancy shall be permitted to start 1 day after start of the flush-out,
provided that flush-out continues for the full 14 days. The building or space shall not be
“baked out” by increasing the temperature of the space above the occupied set point.
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Where continuous ventilation is not possible, the aggregate of flush-out periods shall be
equivalent to 14 days of continuous ventilation.
Exception: All residential buildings.
3603.2 Low-volatile organic compound (VOC) materials. All construction materials,
including but not limited to floor coverings and site-applied finishes, including sealants
and adhesives, resilient flooring, carpeting and pad, site-applied paints, stains and
varnishes, structural wood panels, hardwood veneer plywood, particle board and fiber
board building products, and insulation shall meet specified volatile organic compound
(VOC) emissions limits in accordance with relevant standards California Department of
Public Health (CDPH) 01350; GREENGUARD Environmental Institute GGPS.001
standard for building materials and finishes, and Green Seal® standards. Documentation
demonstrating compliance shall be required with delivery of such materials and shall be
available for inspection.
Exception: For alterations to existing buildings, carpeting and pad, structural wood
panels, hardwood, veneer plywood, particle board and fiber board building products and
insulation are not subject to this requirement.
3603.3 Acoustical control. Minimum requirements for exterior-to-interior sound
transmission, interior sound transmission, and background sound levels in new
construction and additions, except as noted hereunder, shall be provided as specified
herein.
3603.3.1 Sound transmission. Buildings and tenant spaces shall comply with the
following sound transmission requirements:
Exceptions:
1. Portions of buildings or structures that have the interior environment open to the
exterior environment.
2. Concession stands and toilet facilities in Group A-4 and A-5 occupancies.
3603.3.1.1 Exterior sound transmission. Where a Group A1, A3, E and I occupancy
building, a Group B occupancy building used for educational purposes, or a Group R
occupancy building is constructed at a location listed herein, the wall assemblies making
up the building thermal envelope shall have a composite sound transmission class (STCc)
rating of 39 or greater in the following locations:
1. within 500 feet (152 m) of a multi-lane highway designed for high-speed travel
by large numbers of vehicles, and having no traffic lights, stop signs, or other
regulations requiring vehicles to stop; fire stations; heavy industrial or
manufacturing areas or facilities; commercial storage facilities with back-up
alarms; outdoor music amphitheaters; or sports arena or stadium;
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2. within 250 feet (76 m) of a roadway containing 4 or more traffic lanes; or
3. within 1,000 feet (305 m) of an active railway.
3603.3.1.2 Interior sound transmission. Interior wall and floor/ceiling assemblies,
separating interior rooms and spaces shall be designed in accordance with the following
requirements:
1. Wall and floor-ceiling assemblies separating adjacent tenant spaces, tenant spaces
and public places, hotel rooms, motel rooms, patient rooms in nursing homes and
hospitals, and adjoining classrooms shall have a composite STC rating of 50 or
greater.
2. Wall and floor-ceiling assemblies separating classrooms from rest rooms and
showers shall have a composite STC rating of 53 or greater.
3. Wall and floor-ceiling assemblies separating classrooms from music rooms,
mechanical rooms, cafeterias, gymnasiums, and indoor swimming pools shall
have a composite STC rating of 60 or greater.
Exception: Residential Group R occupancies addressed in Section 1207 of this
code.
3603.3.1.3 Background Sound. The average background sound levels within
unoccupied rooms (from heating, ventilating and air conditioning and other building
systems) shall be below the maximum A-weighted sound level for specific occupancies
from Table 3603 below. This shall be confirmed by spot checks during the
commissioning process.
Table 3603 Maximum Allowable Background Sound in Rooms
Occupancy Maximum
A-
weighted
sound
level
(dBa)
Small auditoriums (≤500 seats) 39
Large auditoriums, large live indoor theaters, and large churches (for very
good speech articulation) (>500 seats)
35
TV and broadcast studios (close microphone pickup only) 35
Small live indoor theaters (≤ 500 seats) 35
Private residences:
Bedrooms
Apartments
Family rooms and living rooms
39
48
48
Schools:
Lecture and classrooms
- 53 -
Core learning space with enclosed volume ≤ 20,000 cu ft (<566 cu m)
Core learning space with enclosed volume > 20,000 cu ft (>566 cu m)
Open-plan classrooms
35
40
35
Hotels/motels:
Individual rooms or suites
Meeting/banquet rooms
Service support areas
44
44
57
Office buildings:
Offices
executive
small, private
large, with conference tables
Conference rooms
Large
Small
Open-plan areas
Business machines, computers
Public circulation
44
48
44
39
44
48
53
57
Hospitals and clinics
Private rooms
Wards
Operating rooms
Laboratories
Corridors
Public areas
39
44
44
53
53
52
Movie theaters ≤ 500 seats 48
Churches, small (≤500 seats) 44
Courtrooms 44
Libraries 48
Restaurants 52
Light maintenance shops, industrial plant control rooms, kitchens, and
laundries
62
Shops and garages 67
3603.3.1.4 Outdoor Environmental Quality (OEQ)
3603.3.1.4 Exterior lighting. All building mounted exterior lighting fixtures associated
with new buildings shall have the “Fixture Seal of Approval” from the International
Dark-Sky Association (IDA) or, meet equivalent criteria approved by the Building
Official. Lighting placement shall conform to IDA Model Lighting Ordinance for
- 54 -
building project that verifies that the delivered building and its components, assemblies,
and systems comply with the documented owner project requirements (OPR).
Procedures, documentation, tools and training shall be provided to the building operating
staff to sustain features of the building assemblies and systems for the service life of the
building. This material shall be assembled and organized into a systems manual that
provides necessary information to the building operating staff to operate and maintain all
commissioned systems identified with the building project. The owner shall retain the
system manual and final commissioning report described below. The final
commissioning report shall be made available to the building official upon request.
The following commissioning activities shall be completed prior to approval:
1. The owner shall designate an approved project commissioning authority (CxA) to
lead, review, and oversee completion of the commissioning process activities.
2. The owner, in conjunction with the design team as necessary, shall develop the
owner’s project requirements (OPR) to guide the CxA. The OPR shall be
distributed to all parties participating in the project programming, design,
construction, and operations, and the commissioning team members.
3. The design team shall develop the basis of design (BOD).
4. The CxA shall:
a. review the both the OPR and BOD for clarity and completeness,
b. incorporate construction phase commissioning requirements into project
specifications and other construction documents developed by the design
team,
c. develop and implement a commissioning plan containing all required
forms and procedures for the complete testing of all equipment, systems,
and controls included in Section 3604.1.1,
d. verify the installation and performance of the systems to be commissioned,
e. complete a final commissioning report satisfactory to the building official,
f. verify the owner requirements for training operating personnel and
building occupants are completed, and
g. verify that a system manual in a form satisfactory to the building official
has been prepared. At a minimum, the system manual shall include
operations and maintenance documentation and full warranty information,
and shall provide operating staff the information needed to understand and
operate the commissioned systems as designed.
Core and shell buildings or spaces not completed shall be commissioned to the extent
possible but not less than completing items 1, 2, and 3 in Section 3604.1.1 below.
3604.1.1 Systems. The following systems, if included in the building project, shall be
commissioned:
- 55 -
1. heating, ventilating, air-conditioning, indoor-air-quality, and refrigeration systems
and associated controls;
2. building thermal envelope systems, components, and assemblies to verify thermal,
air, and moisture integrity;
3. all lighting controls and shading controls;
4. service water heating systems;
5. renewable energy systems;
6. background sound levels;
7. cooling towers water use.
(79) Appendix C GROUP U AGRICULTURAL BUILDINGS is adopted in its entirety.
(80) Appendix E SUPPLEMENTARY ACCESSIBILITY REQUIREMENTS, is adopted in
its entirety.
(81) Appendix I PATIO COVERS is adopted in its entirety.
- 56 -
Introduced, considered favorably on first reading, and ordered published this 6th day of
June, A.D. 2017, and to be presented for final passage on the 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
Passed and adopted on final reading on this 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
NOTICE OF PUBLIC HEARING
NOTICE is hereby given of a public hearing to be held before the City Council of the
City of Fort Collins, Colorado, on the 6th day of June, A.D., 2017 at 6:00 p.m., or as soon
thereafter as the matter may come on for hearing, in the Council Chambers at the City Hall, 300
LaPorte Avenue, Fort Collins, Colorado for the purpose of considering the adoption of
ordinances adopting by reference the 2015 International Building Code, 2015 International
Residential Code, 2015 International Energy Conservation Code, 2015 International
Mechanical Code, and the 2015 International Fuel Gas Code together with local amendments,
promulgated by the International Code Council.
Not less than one (1) copy of said Codes has been, and now is on file in the Office of the
City Clerk of the City of Fort Collins and is available for public inspection.
The purpose of the International Building Code, International Residential Code,
International Energy Conservation Code, International Mechanical Code, and the International
Fuel Gas Code adopted by said ordinance is to provide for protection of public health and safety
and general welfare.
The City of Fort Collins will make reasonable accommodations for access to City
services, programs and activities and will make special communication arrangements for persons
with disabilities. Please call 221-6515 (V/TDD: Dial 711 for Relay Colorado) for assistance.
This notice is given and published by order of the City of Fort Collins, Colorado.
Dated at Fort Collins, Colorado this 14th day of May, A.D. 2017.
Wanda Winkelmann
City Clerk
EXHIBIT A
- 1 -
ORDINANCE NO. 073, 2017,
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5, ARTICLE II, DIVISION 2, OF THE CODE
OF THE CITY OF FORT COLLINS FOR THE PURPOSE OF REPEALING THE 2012
INTERNATIONAL ENERGY CONSERVATION CODE (IECC) AND ADOPTING THE
2015 INTERNATIONALENERGY CONSERVATION CODE, WITH AMENDMENTS
WHEREAS, since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS, upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS, the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2015 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed, both in order to align the publication years of the codes
and also because the 2015 publications contain improvements in construction code regulation;
and
WHEREAS, City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals; and
WHEREAS, the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS, the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its citizens that the 2012 International Energy Conservation
Code, as adopted and amended by the City pursuant to Ordinance No. 019, 2014, be repealed,
and that in its place, the 2015 International Energy Conservation Code be adopted, with local
amendments; and
WHEREAS, pursuant to the City Charter II, Section 7, City Council may enact any
ordinance which adopts a code by reference in whole or in part provided that before adoption of
such ordinance the Council hold a public hearing thereon and that notice of the hearing is
published twice in a newspaper of general circulation published in the City, with one of such
publications occurring at least eight (8) days preceding the hearing and the other publication
occurring at least fifteen (15) days preceding the hearing; and
WHEREAS, in compliance with Article II, Section 7, the City Clerk published in the Fort
Collins Coloradoan such notice of hearing concerning adoption of the 2015 International Energy
Conservation Code on May 21, 2017, and May 28, 2017; and
- 2 -
WHEREAS, attached as Exhibit “A” and incorporated herein by reference is the Notice
of Public Hearing dated May 14, 2017, that was so published and which the Council hereby finds
meets the requirements of Article II, Section 7 of the City Charter.
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows:
Section 1. That Section 5-26(c) of the Code of the City of Fort Collins is hereby
amended to read as follows:
(c) Pursuant to the power and authority conferred on the City Council by Section 31-
16-202, C.R.S., and Article II, Section 7 of the Charter, the City Council hereby repeals
the 20092012 International Energy Conservation Code (20092012 IECC), and adopts, as
the energy conservation code of the City, the 20122015 International Energy
Conservation Code (20122015 IECC) published by the International Code Council, as
amended by the City, which shall have the same force and effect as though set forth in
full herein, except as amended pursuant to Section 5-31 of the City Code, and which shall
apply exclusively to the design and construction of all buildings that are classified as
residential buildings not more than three (3) stories above grade and their systems; new
portions of such existing buildings and their systems; and new systems and equipment in
such existing buildings, exclusive of detached one- and two-family dwellings, multiple
single-family dwellings (townhouses), for the purpose of establishing minimum
requirements for minimum energy efficiency. None of the 2015 International Energy
Conservation Code Appendices are hereby adopted.
Section 2. That Section 5-31 of the Code of the City of Fort Collins is hereby
amended to read as follows:
Sec. 5-31. Amendments and deletions to code the 2015 International Energy
Conservation Code
The 20125 INTERNATIONAL ENERGY CONSERVATION CODE adopted in § 5-26(c) is hereby
amended in the following respects:
(1) Section C101.1 Title is hereby retained in its entirety with the following amendments:
C101.1 Title. This code shall be known as the International Energy Conservation Code
of the City of Fort Collins and shall be cited as such. It is referred to herein as “this
code.”
(2) Section C101.4 Applicability is hereby retained in its entirety with the following
amendments:
. . .
Information contained in the amended Commercial Sections: C101.1 Title; C103.6
Permits; C107 Fees; C109 Board of Appeals; C110 Violations; C110.2 Work
commencing before permit issuance; C202 Definitions; C301.4 Exterior and Interior
- 3 -
design parameters; C402.2 Specific insulation requirements, shall be applicable to the
corresponding Residential Sections and shall have the same meaning.
(3) A new Section C101.4.2 Energy assessment is hereby added to read as follows:
C101.4.2 Energy assessment. Prior to any alterations, an energy assessment shall be
completed and submitted to the building official.
Exceptions: Energy assessments are not required in the following cases.
1. Buildings for which the first Certificate of Occupancy was issued after October
2010.
2. First-time interior finishes.
3. A building that has undergone an energy assessment within the previous three
years.
4. Alterations to the HVAC, lighting, power, and exterior walls systems, or
replacement of such with a construction valuation of less than $50,000.
5. Residential buildings.
(4) A new Section C103.6 Permits is hereby added to read as follows:
C103.6 Permits. Procedures related to permits, required inspections, payment of fees and
obtaining required approvals shall be as set forth in Section 105 of the adopted
International Building Code, entitled ‘Permits’.
(5) Section C107 Fees is hereby deleted and replaced in its entirety and the following is
hereby added in lieu thereof:
SECTION C107
FEES
C107.1 Fees. A permit shall not be issued until the fees prescribed in Section C107.2
have been paid, nor shall an amendment to a permit be released until the additional fee, if
any, has been paid.
C107.2 Schedule of permit fees. A fee for each permit shall be paid as required, in
accordance with the schedule as established by the applicable governing authority.
C107.3 Work commencing before permit issuance. Any person who commences any
work before obtaining the necessary permits shall be subject to an additional fee
established by the code official, which shall be in addition to the required permit fees.
C107.4 Related fees. The payment of the fee for the construction, alteration, removal or
demolition of work done in connection to or concurrently with the work or activity
authorized by a permit shall not relieve the applicant or holder of the permit from the
payment of other fees that are prescribed by law.
C107.5 Refunds. The code official is authorized to establish a refund policy.
- 4 -
C107 Fees. All items relating to fees shall be as specified in Section 109 of the adopted
International Building Code, entitled “Fees.”
(6) Section C109 Board of Appeals is hereby deleted and replaced in its entirety and the
following is hereby added in lieu thereof:
SECTION C109
BOARD OF APPEALS
C109.1 General. In order to hear and decide appeals of orders, decisions or
determinations made by the code official relative to the application and interpretation of
this code, there shall be and is hereby created a board of appeals. The code official shall
be an ex officio member of said board but shall have no vote on any matter before the
board. The board of appeals shall be appointed by the governing body and shall hold
office at its pleasure. The board shall adopt rules of procedure for conducting its business,
and shall render all decisions and findings in writing to the appellant with a duplicate
copy to the code official.
C109.2 Limitations on authority. An application for appeal shall be based on a claim
that the true intent of this code or the rules legally adopted thereunder have been
incorrectly interpreted, the provisions of this code do not fully apply or an equally good
or better form of construction is proposed. The board shall have no authority to waive
requirements of this code.
C109.3 Qualifications. The board of appeals shall consist of members who are qualified
by experience and training and are not employees of the jurisdiction.
C109 Appeals. Appeals of decisions, determinations and interpretations of this code
shall be made pursuant to the applicable provisions of Section 113 of the adopted
International Building Code, entitled “Board of Appeals.”
(7) A new Section C110 Violations is hereby added to read as follows:
C110.1 Violations. Any person who violates a provision of this code or fails to comply
with any of the requirements thereof or who erects, constructs, alters or repairs a building
or structure in violation of the approved construction documents or directive of the
building official, or of a permit or certificate issued under the provisions of this code,
shall be guilty of a misdemeanor and shall be subject to the penalties and fines specified
in Section 1-15 of the City Code.
(8) A new Section C110.2 Work commencing before permit issuance is hereby added to
read as follows:
C110.2 Work commencing before permit issuance. In addition to the penalties set
forth in Section 110.1, any person or firm who, before obtaining the necessary permit(s),
commences any construction of, or work on, a building, structure, electrical, gas,
mechanical or plumbing system that is not otherwise exempted from obtaining a permit,
shall be subject to a fine in addition to the standard prescribed permit fee. Said fine shall
be equal in amount to the permit fee, except that it shall not be less than $50 nor more
than $1,000 for the first such violation. A person or firm committing the same such
violation repeatedly shall be subject to a fine equal to double the amount of the permit fee
- 5 -
or double the amount of the fee imposed for the preceding violation, whichever is greater,
for every such subsequent violation committed within 180 days of a previous violation.
Said fines may be appealed to the City Manager pursuant to Chapter 2, Article VI of the
City Code.
(9) Section C202 DEFINITIONS, is hereby amended by adding, in alphabetical order, the
following definitions:
CONTINUOUS AIR BARRIER: The combination of interconnected materials,
assemblies, and flexible sealed joints and components of the building thermal envelope
that provides air tightness to a specified permeability.
ELECTRIC HEAT: An indoor environmental primary heat source that is electric. A
ground-source electric heat pump designed by a licensed professional engineer shall not
be considered electric heat.
NON-ELECTRIC HEAT: An indoor environmental primary heat source that is gas or
that is a ground-source electric heat pump designed by a licensed professional engineer to
operate without the use of supplemental electric resistance heat.
(10) A new Section C301.5 Exterior and Interior Local Design Parameters is hereby added
to read as follows:
Exterior and Interior Local Design Parameters.
Winter Outdoor, Design Dry-bulb (
o
F) = 6
Winter Indoor, Design Dry-bulb (
o
F) = 72
Summer, Outdoor Design Dry-bulb (
o
F) = 90
Summer, Indoor Design Dry-bulb (
o
F) = 75
Summer, Outdoor Design Wet-bulb (
o
F) = 62
Summer, Indoor Design Wet-bulb (
o
F) = 62
Degree Days heating = 5710
Degree days cooling = 694
Fort Collins is in Climate Zone 5.
(11) Section C402.1.3 Insulation component R-value-based method is hereby retained in its
entirety with the following amendments:
. . .
Exception: For buildings using electric heat at the power density of 1.5 Watts per square
foot or greater, the building thermal envelope values in Table C402.1.5 shall be
mandatory.
(12) Section C402.1.4 Assembly U-factor, C-factor or F-factor-based method is hereby
retained in its entirety with the following amendments:
- 6 -
. . .
Exception: For buildings using electric heat at the power density of 1.5 Watts per square
foot or greater, the building thermal envelope values in Table C402.1.5 shall be
mandatory.
(13) Table C402.1.5 Building thermal envelope is hereby added to read as follows:
TABLE C402.1.5 (Mandatory)
BUILDING THERMAL ENVELOPE REQUIREMENTS FOR ELECTRIC HEAT
Opaque Elements Assembly Max.
Insulation Min. R-
Value
Roofs
Insulation Entirely above Deck
Metal Building
Attic and Other
U-0.039
U-0.035
U-0.021
R-30.0 ci
R-19.0 + R-11.0 Ls
R-49.0
Walls, Above Grade
Massa
Metal Building
Steel Framed
Wood Framed and Other
U-0.080
U-0.052
U-0.055
U-0.051
R-13.3 ci
R-13.0 + R-13.0 ci
R-13.0 + R-10.0 ci
R-13.0 + R-7.5 ci
Wall, Below Grade
U-0.092 R-10.0 ci
Floors
Mass
Steel Joist
Wood Framed and Other
U-0.064
U-0.026
U-0.032
R-12.5 ci
R-30.0 + R-7.5 ci
R-38.0
Slab-On-Grade Floors
Unheated
Heated
F-0.540
F-0.440
R-10 for 24 in.
R-15.0 for 36 in. + R-5
ci below
Opaque Doors
Swinging
Non-Swinging
U-0.37
U-0.37
Fenestration Assembly Max. U
- 7 -
The following definitions apply: ci = continuous insulation, Ls = liner system, NR = No (insulation) requirement.
a Mass walls with a heat capacity greater than 12 Btu/ft2∙oF which are unfinished or finished only on the interior do not need to be insulated.
b Nonmetal framing includes framing materials other than metal with or without metal reinforcing or cladding.
c Metal framing includes metal framing with or without thermal break. The “all other” subcategory includes operable windows, fixed windows,
and non-entrance doors.
(14) Section C402.2 Specific building thermal envelope insulation requirements
(Prescriptive) is hereby retained in its entirety with the following amendments:
C402.2 Specific building thermal envelope insulation requirements (Mandatory).
Insulation in building thermal envelope opaque assemblies shall comply with Sections
C402.2.1 through C402.2.6 and Table C402.1.3. In addition to the requirements of
Section C402.1, insulation shall meet the specific requirements of Sections C402.2.1
through C402.2.6. All insulation shall be installed to meet Residential Energy Services
Network (RESNET) Grade I standard.
Exception: RESNET Grade II is acceptable for cavity insulation in exterior walls that
include continuous rigid insulating sheathing and/or insulated siding with a minimum R-
value of 5, and rim joists.
(15) A new Section C402.2.3.1 Thermal resistance of below-grade walls is hereby added to
read as follows:
C402.2.3.1 Thermal resistance of below-grade walls. The minimum thermal resistance
(R-value) of the insulating material installed in, or continuously on, the below-grade
walls shall be R-10 and shall extend to a depth of 10 feet (3,048 mm) below the outside
finish ground level, or to the level of the floor, whichever is less.
(16) Sections C402.5 Air leakage-thermal envelope (Mandatory), C402.5.1 Air Barriers,
C402.5.1.1 Air barrier construction, C402.5.1.2 Air barrier compliance options, and
C402.5.1.2.1 Materials, C402.5.1.2.2 Assemblies, are hereby deleted and replaced in
their entirety and the following is hereby added in lieu thereof:
Section C402.5 Air leakage-thermal envelope (Mandatory). The thermal envelope of
buildings shall comply with Sections C402.5.1 through C402.5.8, or the building thermal
envelope shall be tested in accordance with ASTM E 779 at a pressure differential of 0.3
inch water gauge (75 Pa) or an equivalent method approved by the code official and
deemed to comply with the provisions of this section when the tested air leakage rate of
the building thermal envelope is not greater than 0.40 cfm/ft2 (0.2 L/s • m2). Where
Skylight (up to 3% of Roof maximum)
SHGC
Uall-0.50
U-0.40
- 8 -
compliance is based on such testing, the building shall also comply with Sections
C402.5.5, C402.5.6 and C402.5.7.
A continuous air barrier shall be provided throughout the building thermal envelope. The
air barriers shall be permitted to be located on the inside or outside of the building
envelope, located within the assemblies composing the envelope, or any combination
thereof. The air barrier shall comply with Sections C402.5.1.1 and C402.5.1.2.
Exception: Air barriers are not required in buildings located in Climate Zone 2B.
Section C402.5.1 Air Barriers.
A continuous air barrier shall be provided throughout the building thermal envelope. The
air barriers shall be permitted to be located on the inside or outside of the building
envelope, located within the assemblies composing the envelope, or any combination
thereof. The air barrier shall comply with Sections C402.5.1.1 and C402.5.1.2.
Exception: Air barriers are not required in buildings located in Climate Zone 2B.
C402.5.1.1 Air barrier construction.
The continuous air barrier shall be constructed to comply with the following:
1. The air barrier shall be continuous for all assemblies that are the thermal envelope
of the building and across the joints and assemblies.
2. Air barrier joints and seams shall be sealed, including sealing transitions in places
and changes in materials. The joints and seals shall be securely installed in or on the joint
for its entire length so as not to dislodge, loosen or otherwise impair its ability to resist
positive and negative pressure from wind, stack effect and mechanical ventilation.
3. Penetrations of the air barrier shall be caulked, gasketed or otherwise sealed in a
manner compatible with the construction materials and location. Joints and seals
associated with penetrations shall be sealed in the same manner or taped or covered with
moisture vapor-permeable wrapping material. Sealing materials shall be appropriate to
the construction materials being sealed and shall be securely installed around the
penetration so as not to dislodge, loosen or otherwise impair the penetrations’ ability to
resist positive and negative pressure from wind, stack effect and mechanical ventilation.
Sealing of concealed fire sprinklers, where required, shall be in a manner that is
recommended by the manufacturer. Caulking or other adhesive sealants shall not be used
to fill voids between fire sprinkler cover plates and walls or ceilings.
4. Recessed lighting fixtures shall comply with Section C402.5.7. Where similar
objects are installed that penetrate the air barrier, provisions shall be made to maintain the
integrity of the air barrier.
C402.5.1.2 Air barrier compliance options.
A continuous air barrier for the opaque building envelope shall comply with Section
C402.5.1.2.1 or C402.5.1.2.2.
C402.5.1.2.1 Materials.
Materials with an air permeability not greater than 0.004 cfm/ft2 (0.02 L/s • m2) under a
pressure differential of 0.3 inch water gauge (75 Pa) when tested in accordance with
ASTM E 2178 shall comply with this section. Materials in Items 1 through 16 shall be
- 9 -
deemed to comply with this section, provided joints are sealed and materials are installed
as air barriers in accordance with the manufacturer’s instructions.
1. Plywood with a thickness of not less than 3/8 inch (10 mm).
2. Oriented strand board having a thickness of not less than 3/8 inch (10 mm).
3. Extruded polystyrene insulation board having a thickness of not less than 1/2 inch
(12.7 mm).
4. Foil-back polyisocyanurate insulation board having a thickness of not less than
1/2 inch (12.7 mm).
5. Closed-cell spray foam a minimum density of 1.5 pcf (2.4 kg/m3) having a
thickness of not less than 11/2 inches (38 mm).
6. Open-cell spray foam with a density between 0.4 and 1.5 pcf (0.6 and 2.4 kg/m3)
and having a thickness of not less than 4.5 inches (113 mm).
7. Exterior or interior gypsum board having a thickness of not less than 1/2 inch
(12.7 mm).
8. Cement board having a thickness of not less than 1/2 inch (12.7 mm).
9. Built-up roofing membrane.
10. Modified bituminous roof membrane.
11. Fully adhered single-ply roof membrane.
12. A Portland cement/sand parge, or gypsum plaster having a thickness of not less
than 5/8 inch (15.9 mm).
13. Cast-in-place and precast concrete.
14. Fully grouted concrete block masonry.
15. Sheet steel or aluminum.
16. Solid or hollow masonry constructed of clay or shale masonry units.
C402.5.1.2.2 Assemblies.
Assemblies of materials and components with an average air leakage not greater than
0.04 cfm/ft2 (0.2 L/s • m2) under a pressure differential of 0.3 inch of water gauge
(w.g.)(75 Pa) when tested in accordance with ASTM E 2357, ASTM E 1677 or ASTM E
283 shall comply with this section. Assemblies listed in Items 1 through 3 shall be
deemed to comply, provided joints are sealed and the requirements of Section C402.5.1.1
are met.
1. Concrete masonry walls coated with either one application of block filler or two
applications of a paint or sealer coating.
2. Masonry walls constructed of clay or shale masonry units with a nominal width of
4 inches (102 mm) or more.
3. A Portland cement/sand parge, stucco or plaster not less than 1/2 inch (12.7 mm)
in thickness.
Section C402.5 Air leakage-thermal envelope (Mandatory). The building thermal
envelope shall be designed and constructed with a continuous air barrier that complies
with the following requirements to control air leakage into, or out of, the conditioned
space. The boundary limits and size of the surface area (floor, wall, and ceiling or roof)
of the building air barrier, and of the zone or zones to be tested for maximum building air
infiltration and exfiltration, shall be clearly identified on the approved construction
drawings. All air barrier components of each building thermal envelope assembly shall
be clearly identified on construction documents and the joints, interconnections, and
- 10 -
penetrations of the air barrier components shall be detailed and shall comply with the
following:
1. The air barrier shall be continuous throughout the building thermal envelope (at
the lowest floor, exterior walls, and ceiling or roof), with all joints and seams
sealed and with sealed connections between all transitions in planes and changes
in materials and at all penetrations.
2. The air barrier component of each assembly shall be joined and sealed in a
flexible manner to the air barrier component of adjacent assemblies, allowing for
the relative movement of these assemblies and components.
3. The air barrier shall be capable of withstanding positive and negative combined
design wind, fan, and stack pressures on the air barrier without damage or
displacement, and shall transfer the load to the structure, and shall not displace
adjacent materials under full load.
4. The air barrier shall be installed in accordance with the manufacturer's
instructions and in such a manner as to achieve the performance requirements.
5. Where lighting fixtures with ventilation holes or other similar objects are to be
installed in such a way as to penetrate the continuous air barrier, provisions shall
be made to maintain the integrity of the continuous air barrier.
Compliance of the continuous air barrier for the opaque building thermal envelope shall
be demonstrated by the following:
1. Materials. Using air-barrier materials that have an air permeability not to exceed
0.004 cfm/ft
2
under a pressure differential of 0.3 in. water (1.57 lb/ft
2
) (0.02
L/s
.
m
2
under a pressure differential of 75 Pa) when tested in accordance with
ASTM E2178;
2. Assemblies. Using assemblies of materials and components that have an average
air leakage not to exceed 0.04 cfm/ft
2
under a pressure differential of 0.3 in. water
(1.57 lb/ft
2
) (0.2 L/s
.
m
2
under a pressure differential of 75 Pa) when tested in
accordance with ASTM E2357 or ASTM E1677;
3. Testing. Testing the completed building and documenting that the air leakage rate
of the building thermal envelope does not exceed 0.25 cfm/ft
2
under a pressure
differential of 0.3 in. water (1.57 lb/ft
2
) (0.02 L/s
.
m
2
under a pressure differential
of 75 Pa) shall be completed in accordance with the most current version of the
City of Fort Collins Building Air Leakage Test Protocol for commercial buildings
or City of Fort Collins Building Code Protocol for New Multifamily
Building Air Tightness Testing. Documentation of the testing results shall be
- 11 -
methods to discover leaks. Repairs based on these diagnostics and retesting is
required prior to submitting results to the building official.
4. Alternative Inspection. When approved by the building official, where it is
deemed impractical to isolate and perform a blower door test on a new renovation
or addition, the renovation or addition air barrier shall be inspected for continuity
and integrity by an approved inspector.
(17) Section C402.5.6 Loading dock weatherseals is hereby retained in its entirety with the
following amendments:
C402.5.6 Loading dock weatherseals. Cargo doors and loading dock doors shall be
equipped with weather-seals to restrict infiltration. when vehicles are parked in the
doorway.
(18) Section C405.2.1 Occupant sensor controls is hereby retained in its entirety with the
following amendments:
. . .
In new construction and additions that require a building permit, occupant sensor
controls shall be provided to automatically reduce connected lighting power by not less
than 50 percent during periods when no occupants are present in the following locations:
1. corridors and enclosed stairwells;
2. storage stack areas not open to the public;
3. library stack areas; and
4. parking garages.
Lighting in means of egress shall comply with the luminance or uniformity criteria
required by the International Building Code when occupied.
Exception: Automatic power reduction shall not be used to control battery back-up
emergency lighting and exit signage.
(19) Section C405.2.4 Specific application controls is hereby retained in its entirety with the
following amendments:
3. Hotel and motel sleeping units and guest suites shall have a master control device
at the main room entry that controls all permanently installed luminaires and
switched receptacles.
3. In hotels and motels the lighting switched outlets, permanently wired luminaires,
television, and heating, ventilating and air conditioning system equipment serving
each guest room shall be automatically controlled so that lighting, switched
outlets, permanently wired luminaires, and televisions will be turned off and the
heating, ventilating and air conditioning system set point raised at least 5 degrees
Fahrenheit (3 degrees centigrade) in the cooling mode and lowered at least 5
- 12 -
degrees Fahrenheit (3 degrees centigrade) in the heating mode whenever the guest
room is unoccupied.
All permanently wired luminaires located in bathrooms within sleeping units in hotels,
motels, boarding houses or similar buildings shall be equipped with occupant sensors that
require manual intervention to energize circuits.
(20) Section C405.2.5 Exterior lighting controls is hereby deleted and replaced in its entirety
and the following is hereby added in lieu thereof:
Lighting for exterior applications other than emergency lighting that is intended to be
automatically off during building operation, lighting specifically required to meet health
and life safety requirements or decorative gas lighting systems shall:
1. Be provided with a control that automatically turns off the lighting as a function
of available daylight.
2. Where lighting the building façade or landscape, the lighting shall have controls
that automatically shut off the lighting as a function of dawn/dusk and a set opening and
closing time.
3. Where not covered in Item 2, the lighting shall have controls configured to
automatically reduce the connected lighting power by not less than 30 percent from not
later than midnight to 6 a.m., from one hour after business closing to one hour before
business opening or during any period when activity has not been detected for a time of
longer than 15 minutes.
All time switches shall be able to retain programming and the time setting during loss of
power for a period of at least 10 hours.
Exception: Lighting for covered vehicle entrances or exits from buildings or parking
structures where required for safety, security or eye adaptation.
C405.2.5 Exterior lighting controls. In addition to any other applicable requirements of
this IECC, all outdoor lighting controls shall comply with the following requirements.
For lighting of building façades, parking lots, garages, canopies (sales and non-sales), and
all outdoor sales areas, automatic controls shall be installed to reduce the sum of all
lighting power (in watts) by a minimum of 50 percent two hours after normal business
closing, and to turn off outdoor lighting within 30 minutes after sunrise.
Exceptions:
1. Lighting required by a statute, ordinance, or regulation duly adopted for the
protection of public health, safety and/or human life, including but not limited to,
emergency lighting.
2. Lighting that is controlled by a motion sensor and photo-control.
3. Lighting for facilities that have equal lighting requirements at all hours and are
designed to operate continuously.
- 13 -
4. Temporary outdoor lighting.
5. Externally illuminated signs and signs that are either internally illuminated or
have integral lamps.
(21) A new Section C405.10 Electricity distribution design is hereby added to read as
follows:
C405.10 Electricity distribution design requirements and load type isolation.
Electric distribution systems within, on or adjacent to and serving a new building shall be
designed in such fashion that each primary panel supplies only one electricity load type
as defined in Sections C405.10.1 through C405.10.5. The energy load type served by
each distribution panel shall be clearly designated on the panel with the use served, and
adequate space shall be provided for installation of metering equipment or other data
collection devices, temporary or permanent, to measure the energy use associated with
each distribution panel.
Exceptions:
1. Buildings or spaces with less than 600 amp electric service are exempted from
this requirement.
2. Electrical systems that are designed and constructed in such fashion that the total
usage of each of the load types as described in Sections C405.10.1 through
C405.10.5 shall be permitted to be measured through the use of installed sub-
meters or other equivalent methods as approved.
3. Group U occupancies
C405.10.1 Heating, ventilating, and air conditioning system electric load. This
category shall include all electricity used to heat, cool, and provide ventilation to the
building including, but not limited to, fans, pumps, and cooling energy.
C405.10.2 Lighting system electric load. This category shall include all electricity for
interior and exterior lighting used in occupant spaces and common areas.
C405.10.3 Plug loads. This category shall include all electricity use by devices, electric
appliances and equipment connected to convenience receptacle outlets.
C405.10.4 Process loads. This category shall include all electricity used by any single
load associated with activities within the building, such as, but not limited to, data
centers, manufacturing equipment and commercial kitchens, that exceed 5% of the total
energy use of the whole building.
C405.10.5 Miscellaneous loads. This category shall include all electricity use for all
other building operations and other operational loads.
- 14 -
(22) Section C408 System commissioning is hereby deleted and replaced in its entirety and
the following is hereby added in lieu thereof:
SECTION C408
SYSTEM COMMISSIONING
C408.1 General. This section covers the commissioning of the building mechanical
systems in Section C403 and electrical power and lighting systems in Section C405.
C408.2 Mechanical systems commissioning and completion requirements. Prior to
passing the final mechanical inspection, the registered design professional shall provide
evidence of mechanical systems commissioning and completion in accordance the
provisions of this section. Construction document notes shall clearly indicate provisions
for commissioning and completion requirements in accordance with this section and are
permitted to refer to specifications for further requirements. Copies of all documentation
shall be given to the owner and made available to the code official upon request in
accordance with Sections C408.2.4 and C408.2.5.
Exception:
The following systems are exempt from the commissioning requirements:
1. Mechanical systems in buildings where the total mechanical equipment capacity is less
than 480,000 Btu/h (140 690 W) cooling capacity and 600,000 Btu/h (175 860 W)
heating capacity.
2. Systems included in Section C403.3 that serve dwelling units and sleeping units in
hotels, motels, boarding houses or similar units.
C408.2.1 Commissioning plan. A commissioning plan shall be developed by a
registered design professional or approved agency and shall include the following items:
1. A narrative description of the activities that will be accomplished during each phase of
commissioning, including the personnel intended to accomplish each of the activities.
2. A listing of the specific equipment, appliances or systems to be tested and a description
of the tests to be performed.
3. Functions to be tested, including, but not limited to calibrations and economizer
controls.
4. Conditions under which the test will be performed. At a minimum, testing shall affirm
winter and summer design conditions and full outside air conditions.
5. Measurable criteria for performance.
C408.2.2 Systems adjusting and balancing. HVAC systems shall be balanced in
accordance with generally accepted engineering standards. Air and water flow rates shall
be measured and adjusted to deliver final flow rates within the tolerances provided in the
product specifications. Test and balance activities shall include air system and hydronic
system balancing.
C408.2.2.1 Air systems balancing. Each supply air outlet and zone terminal device shall
be equipped with means for air balancing in accordance with the requirements of Chapter
6 of the International Mechanical Code. Discharge dampers are prohibited on constant
volume fans and variable volume fans with motors 10 hp (18.6 kW) and larger. Air
systems shall be balanced in a manner to first minimize throttling losses then, for fans
with system power of greater than 1 hp (0.74 kW), fan speed shall be adjusted to meet
design flow conditions.
Exception:
Fans with fan motors of 1 hp (0.74 kW) or less.
- 15 -
C408.2.2.2 Hydronic systems balancing. Individual hydronic heating and cooling coils
shall be equipped with means for balancing and measuring flow. Hydronic systems shall
be proportionately balanced in a manner to first minimize throttling losses, then the pump
impeller shall be trimmed or pump speed shall be adjusted to meet design flow
conditions. Each hydronic system shall have either the capability to measure pressure
across the pump, or test ports at each side of each pump.
Exceptions:
1. Pumps with pump motors of 5 hp (3.7 kW) or less.
2. Where throttling results in no greater than five percent of the nameplate horsepower
draw above that required if the impeller were trimmed.
C408.2.3 Functional performance testing. Functional performance testing specified in
Sections C408.2.3.1 through C408.2.3.3 shall be conducted.
C408.2.3.1 Equipment. Equipment functional performance testing shall demonstrate the
installation and operation of components, systems, and system-to-system interfacing
relationships in accordance with approved plans and specifications such that operation,
function, and maintenance serviceability for each of the commissioned systems is
confirmed. Testing shall include all modes and sequence of operation, including under
full-load, part-load and the following emergency conditions:
1. All modes as described in the sequence of operation;
2. Redundant or automatic back-up mode;
3. Performance of alarms; and
4. Mode of operation upon a loss of power and restoration of power.
Exception:
Unitary or packaged HVAC equipment listed in Tables C403.2.3(1) through C403.2.3(3)
that do not require supply air economizers.
C408.2.3.2 Controls. HVAC control systems shall be tested to document that control
devices, components, equipment, and systems are calibrated, adjusted and operate in
accordance with approved plans and specifications. Sequences of operation shall be
functionally tested to document they operate in accordance with approved plans and
specifications.
C408.2.3.3 Economizers. Air economizers shall undergo a functional test to determine
that they operate in accordance with manufacturer’s specifications.
C408.2.4 Preliminary commissioning report. A preliminary report of commissioning
test procedures and results shall be completed and certified by the registered design
professional or approved agency and provided to the building owner. The report shall be
identified as “Preliminary Commissioning Report” and shall identify: 1. Itemization of
deficiencies found during testing required by this section that have not been corrected at
the time of report preparation.
2. Deferred tests that cannot be performed at the time of report preparation because of
climatic conditions.
3. Climatic conditions required for performance of the deferred tests.
C408.2.4.1 Acceptance of report. Buildings, or portions thereof, shall not pass the final
mechanical inspection until such time as the code official has received a letter of
transmittal from the building owner acknowledging that the building owner has received
the Preliminary Commissioning Report.
C408.2.4.2 Copy of report. The code official shall be permitted to require that a copy of
the Preliminary Commissioning Report be made available for review by the code official.
- 16 -
C408.2.5 Documentation requirements. The construction documents shall specify that
the documents described in this section be provided to the building owner within 90 days
of the date of receipt of the certificate of occupancy.
C408.2.5.1 Drawings. Construction documents shall include the location and
performance data on each piece of equipment.
C408.2.5.2 Manuals. An operating and maintenance manual shall be provided and
include all of the following:
1. Submittal data stating equipment size and selected options for each piece of equipment
requiring maintenance.
2. Manufacturer’s operation manuals and maintenance manuals for each piece of
equipment requiring maintenance, except equipment not furnished as part of the project.
Required routine maintenance actions shall be clearly identified.
3. Name and address of at least one service agency.
4. HVAC controls system maintenance and calibration information, including wiring
diagrams, schematics, and control sequence descriptions. Desired or field-determined
setpoints shall be permanently recorded on control drawings at control devices or, for
digital control systems, in system programming instructions.
5. A narrative of how each system is intended to operate, including recommended
setpoints.
6. Operation and maintenance manuals for each piece of lighting equipment.
Required routine maintenance actions, cleaning and recommended relamping shall be
clearly identified.
7. A schedule for inspecting and recalibrating all lighting controls.
8. A narrative of how each system is intended to operate, including recommended
set points.
C408.2.5.3 System balancing report. A written report describing the activities and
measurements completed in accordance with Section C408.2.2.
C408.2.5.4 Final commissioning report. A report of test procedures and results
identified as “Final Commissioning Report” shall be delivered to the building owner and
shall include:
1. Results of functional performance tests.
2. Disposition of deficiencies found during testing, including details of corrective
measures used or proposed.
3. Functional performance test procedures used during the commissioning process
including measurable criteria for test acceptance, provided herein for repeatability.
Exception:
Deferred tests which cannot be performed at the time of report preparation due to climatic
conditions.
C408.3 Lighting system functional testing.
Controls for automatic lighting systems shall comply with this section.
C408.3.1 Functional testing.
Prior to passing final inspection, the registered design professional shall provide evidence
that the lighting control systems have been tested to ensure that control hardware and
software are calibrated, adjusted, programmed and in proper working condition in
accordance with the construction documents and manufacturer’s instructions. Functional
testing shall be in accordance with Sections C408.3.1.1 and C408.3.1.2 for the applicable
control type.
C408.3.1.1 Occupant sensor controls.
- 17 -
Where occupant sensor controls are provided, the following procedures shall be
performed:
1. Certify that the occupant sensor has been located and aimed in accordance with
manufacturer recommendations.
2. For projects with seven or fewer occupant sensors, each sensor shall be tested.
3. For projects with more than seven occupant sensors, testing shall be done for each
unique combination of sensor type and space geometry. Where multiples of each
unique combination of sensor type and space geometry are provided, not less than 10
percent, but in no case less than one, of each combination shall be tested unless the
code official or design professional requires a higher percentage to be tested. Where
30 percent or more of the tested controls fail, all remaining identical combinations
shall be tested.
For occupant sensor controls to be tested, verify the following:
3.1. Where occupant sensor controls include status indicators, verify correct operation.
3.2. The controlled lights turn off or down to the permitted level within the required time.
3.3. For auto-on occupant sensor controls, the lights turn on to the permitted level when
an occupant enters the space.
3.4. For manual-on occupant sensor controls, the lights turn on only when manually
activated.
3.5. The lights are not incorrectly turned on by movement in adjacent areas or by HVAC
operation.
C408.3.1.2 Time-switch controls.
Where time-switch controls are provided, the following procedures shall be performed:
1. Confirm that the time-switch control is programmed with accurate weekday, weekend
and holiday schedules.
2. Provide documentation to the owner of time- switch controls programming including
weekday, weekend, holiday schedules, and set-up and preference program settings.
3. Verify the correct time and date in the time switch.
4. Verify that any battery back-up is installed and energized.
5. Verify that the override time limit is set to not more than 2 hours.
6. Simulate occupied condition. Verify and document the following:
6.1. All lights can be turned on and off by their respective area control switch.
6.2. The switch only operates lighting in the enclosed space in which the switch is
located.
7. Simulate unoccupied condition. Verify and document the following:
7.1. Nonexempt lighting turns off.
7.2. Manual override switch allows only the lights in the enclosed space where the
override switch is located to turn on or remain on until the next scheduled shutoff
occurs.
8. Additional testing as specified by the registered design professional.
C408.3.1.3 Daylight responsive controls.
Where daylight responsive controls are provided, the following shall be verified:
1. Control devices have been properly located, field calibrated and set for accurate
setpoints and threshold light levels.
2. Daylight controlled lighting loads adjust to light level set points in response to
available daylight.
- 18 -
3. The locations of calibration adjustment equipment are readily accessible only to
authorized personnel.
C408.3.2 Documentation requirements.
The construction documents shall specify that documents certifying that the installed
lighting controls meet documented performance criteria of Section C405 are to be
provided to the building owner within 90 days from the date of receipt of the certificate
of occupancy.
C408 System Commissioning shall be in conformance with Section 3604 of the adopted
International Building Code, entitled “Commissioning, Operations and Maintenance.”
(23) TABLE R402.1.2 Insulation and Fenestration Requirements by Component is hereby
deleted and replaced in its entirety and the following is hereby added in lieu thereof:
TABLE R402.1.2
INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT
HEATING
SYSTEM
TYPE
FENESTRATION
U-FACTORb
SKYLIGHTb
U-FACTOR
GLAZED
FENESTRATION
SHGC
CEILING
R-
VALUE
WOOD
FRAME
WALL
R-VALUE
f
g
MASS
WALL
R-
VALUEg
FLOOR
R-
VALUE
e
BASEMENTc
WALL
R-VALUE
SLABd
R-
VALUE
&
DEPTH
CRAWLc
SPACE
WALL
R-VALUE
Non-Electric
heat
0.32 0.55 NR 49 20 or
13 + 5
13/17 30 10/13h
15/19i
10,2
- 19 -
a. Non-fenestration U-factors shall be obtained from measurement, calculation or an approved source.
b. When more than half the insulation is on the interior, the mass wall U-factor shall be the same as the frame
wall U-factor.
(25) Section R402.2 Specific insulation requirements (Prescriptive) is hereby retained in its
entirety with the following amendments:
R402.2 Specific insulation requirements (Prescriptive)(Mandatory).
In addition to the requirements of Section R402.1, insulation shall meet the specific
requirements of Sections R402.2.1 through R402.2.14.
(26) Section R402.2.1 Ceilings with attics spaces is hereby retained in its entirety with the
following amendments:
R402.2.1 Ceilings with attic spaces. Where Section R402.1.2 would require R-38
insulation in the ceiling, installing R-30 over 100 percent of the ceiling area requiring
insulation shall be deemed to satisfy the requirement for R-38 wherever the full height of
uncompressed R-30 insulation extends over the wall top plate at the eaves. Similarly,
where Section R402.1.2 would require R-49 insulation in the ceiling, installing R-38 over
100 percent of the ceiling area requiring insulation shall be deemed to satisfy the
requirement for R-49 insulation wherever the full height of uncompressed R-38
insulation extends over the wall top plate at the eaves. This reduction shall not apply to
the U-factor alternative approach in Section R402.1.4 and the total UA alternative in
Section R402.1.5. At the eaves, the insulation extending over the exterior wall top plate
shall be R-19 minimum.
(27) Section R402.2.3 Eave baffle is hereby retained in its entirety with the following
amendments:
R402.2.3 Eave baffle and blocks. For air permeable insulations in vented attics with
ventilation from open or box soffits, a baffle shall be installed to provide ventilation from
the soffit to the attic adjacent to each soffit or eave vent. In the case of continuous soffit
vents, enough baffles shall be installed to maintain the required attic ventilation from the
soffit. Baffles shall maintain an opening equal or greater than the size of the vent. The
ventilation baffle shall extend over the top of the attic insulation between rafters or
trusses, maintaining a minimum 1 inch clear opening below the roof deck and sufficient
space for the minimum depth of attic insulation. The baffle shall be permitted to be any
solid material. All other spaces between rafters or trusses shall be blocked at the outside
edge of the exterior wall top plate, with air impermeable materials so as to contain the
attic insulation.
(28) A new Section R402.2.14 Rim insulation requirements is hereby added to read as
follows:
R402.2.14 Rim insulation requirements. All rim plates and rim joist which are part of
the thermal envelope shall be air-sealed. All rim plates and rim joist which are part of the
thermal envelope shall be insulated using spray foam materials to R-15 minimum when
the basement walls are insulated to 10/13 in accordance with Table R402.1.2.
- 20 -
(29) Sections 402.4.1 Building thermal envelope, R402.4.1.1 Installation, and R402.4.1.2
Testing, are hereby deleted and replaced in their entirety and the following is hereby
added in lieu thereof:
R402.4.1 Building thermal envelope. The building thermal envelope shall comply with
Sections R402.4.1.1 and R402.4.1.2. The sealing methods between dissimilar materials
shall allow for differential expansion and contraction.
R402.4.1.1 Installation. The components of the building thermal envelope as listed in
Table R402.4.1.1 shall be installed in accordance with the manufacturer’s instructions
and the criteria listed in Table R402.4.1.1, as applicable to the method of construction.
Where required by the code official, an approved third party shall inspect all components
and verify compliance.
R402.4.1.2 Testing. The building or dwelling unit shall be tested and verified as having
an air leakage rate of not exceeding 5 air changes per hour in Climate Zones 1 and 2, and
3 air changes per hour in Climate Zones 3 through 8. Testing shall be conducted with a
blower door at a pressure of 0.2 inches w.g. (50 Pascals). Where required by the code
official, testing shall be conducted by an approved third party. A written report of the
results of the test shall be signed by the party conducting the test and provided to the
code official. Testing shall be performed at any time after creation of all penetrations of
the building thermal envelope.
During testing:
1. Exterior windows and doors, fireplace and stove doors shall be closed, but not sealed,
beyond the intended weatherstripping or other infiltration control measures;
2. Dampers including exhaust, intake, makeup air, backdraft and flue dampers shall be
closed, but not sealed beyond intended infiltration control measures;
3. Interior doors, if installed at the time of the test, shall be open;
4. Exterior doors for continuous ventilation systems and heat recovery ventilators shall be
closed and sealed;
5. Heating and cooling systems, if installed at the time of the test, shall be turned off; and
6. Supply and return registers, if installed at the time of the test, shall be fully open.
R402.4.1 Building thermal envelope. The building, or individual dwelling units, shall be
tested and verified as having an air leakage rate not exceeding 3 air changes per hour.
Testing shall be conducted with a blower door at a pressure of 0.2 inches w.g. (50
Pascals) in accordance with Section 802 of the RESNET Mortgage Industry National
Home Energy Rating Standards or City of Fort Collins Building Code Protocol for New
Multifamily Building Air Tightness Testing. Where required by the building official,
testing shall be conducted by an approved third party. A written report of the results of
the test shall be signed by the party conducting the test and provided to the building
official. Isolation of attached garages from adjoining conditioned areas shall be verified
in accordance with City of Fort Collins protocols.
Testing shall occur after rough-in and after installation of penetrations of the building
thermal envelope, including but not limited to penetrations for utilities, plumbing,
electrical, ventilation and combustion appliances.
General requirements during testing:
- 21 -
1. Exterior windows and doors, fireplace and stove doors shall be closed, but not
sealed beyond the intended weather-stripping or other infiltration control
measures.
2. Dampers including exhaust, intake, makeup air, backdraft and flue dampers shall
be closed, but not sealed beyond intended infiltration control measures.
3. Interior doors, if installed at the time of the test, shall be open.
4. Exterior doors for continuous ventilation systems and heat recovery ventilators
shall be closed and sealed.
5. Heating and cooling systems, if installed at the time of the test, shall be turned off.
6. Supply and return registers, if installed at the time of the test, shall be fully open.
7. Combustion air inlets shall not be closed or otherwise obstructed.
8. Garage doors to the exterior shall be closed.
In additions or alterations to existing buildings, air sealing compliance shall be
considered acceptable when the items listed in Table R402.4.1.1, applicable to the
method of construction, are field-verified.
(30) Section R402.5 Maximum fenestration U-factor and SHGC (Mandatory) is hereby
retained in its entirety with the following amendments:
The area-weighted average maximum fenestration U-factor permitted using tradeoffs
from Section R402.1.5 or R405 shall be 0.480.40 for vertical fenestration. in Climate
Zones 4 and 5 and 0.40 in Climate Zones 6 through 8 for vertical fenestration, and 0.75 in
Climate Zones 4 through 8 for skylights. The area-weighted average maximum
fenestration SHGC permitted using tradeoffs from Section R405 in Climate Zones 1
through 3 shall be 0.50.
(31) Section R403.3.1 Insulation (Prescriptive) is hereby retained in its entirety with the
following amendments:
R403.3.1 Insulation (Prescriptive)(Mandatory).
. . .
(32) Section R403.7 Equipment sizing and efficiency rating (Mandatory) is hereby retained
in its entirety with the following amendments:
R403.7 Equipment sizing and efficiency rating (Mandatory). Heating and cooling
equipment shall be sized in accordance with ACCA Manual S based on building loads
calculated in accordance with ACCA Manual J or other approved heating and cooling
calculation methodologies. New or replacement heating and cooling equipment shall
have an efficiency rating equal to or greater than the minimum required by federal law
for the geographic location where the equipment is installed. designed in accordance with
International Residential Code Section M1401.3 and performance will be verified in
accordance with International Residential Code Section M1309.
- 22 -
(33) Section R404.1 Lighting equipment (Mandatory) is hereby retained in its entirety with
the following amendments:
R404.1 Lighting equipment (Mandatory). Not less than 75 percent of the lamps in
permanently installed lighting fixtures shall be high-efficacy lamps or not less than 75
percent 50 percent of the permanently installed lighting fixtures shall contain only high-
efficacy lamps.
Exception: Low-voltage lighting.
(34) A new Section R404.2 Occupant sensor controls is hereby added to read as follows:
R404.2 Occupant sensor controls. In multifamily buildings, occupant sensor controls
shall be provided to automatically reduce connected lighting power by not less than 50
percent during periods when no occupants are present in common corridors and common
enclosed stairwells.
Lighting in means of egress shall comply with the luminance or uniformity criteria
required by the International Building Code when occupied.
Exception: Automatic power reduction shall not be used to control battery back-up
emergency lighting and exit signage.
(35) Chapter 6 REFERENCED STANDARDS is hereby amended by adding, in alphabetical
order, the following additional referenced standard:
RESNET® Mortgage Industry National Home Energy Rating Systems Standards
Residential Energy Services Network, Inc.
P.O. Box 4561
Oceanside, CA 92052-4561
http://resnet.us
RESNET® reference standard Grade I and Grade II Insulation
Referenced in Amended 2012 IECC Section C402.2.
Introduced, considered favorably on first reading, and ordered published this 6th day of
June, A.D. 2017, and to be presented for final passage on the 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
- 23 -
Passed and adopted on final reading on this 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
NOTICE OF PUBLIC HEARING
NOTICE is hereby given of a public hearing to be held before the City Council of the
City of Fort Collins, Colorado, on the 6th day of June, A.D., 2017 at 6:00 p.m., or as soon
thereafter as the matter may come on for hearing, in the Council Chambers at the City Hall, 300
LaPorte Avenue, Fort Collins, Colorado for the purpose of considering the adoption of
ordinances adopting by reference the 2015 International Building Code, 2015 International
Residential Code, 2015 International Energy Conservation Code, 2015 International
Mechanical Code, and the 2015 International Fuel Gas Code together with local amendments,
promulgated by the International Code Council.
Not less than one (1) copy of said Codes has been, and now is on file in the Office of the
City Clerk of the City of Fort Collins and is available for public inspection.
The purpose of the International Building Code, International Residential Code,
International Energy Conservation Code, International Mechanical Code, and the International
Fuel Gas Code adopted by said ordinance is to provide for protection of public health and safety
and general welfare.
The City of Fort Collins will make reasonable accommodations for access to City
services, programs and activities and will make special communication arrangements for persons
with disabilities. Please call 221-6515 (V/TDD: Dial 711 for Relay Colorado) for assistance.
This notice is given and published by order of the City of Fort Collins, Colorado.
Dated at Fort Collins, Colorado this 14th day of May, A.D. 2017.
Wanda Winkelmann
City Clerk
EXHIBIT A
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ORDINANCE NO. 074, 2017
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5, ARTICLE II, DIVISION 2, OF THE CODE
OF THE CITY OF FORT COLLINS FOR THE PURPOSE OF REPEALING THE
2012 INTERNATIONAL RESIDENTIAL CODE (IRC), AND ADOPTING THE
2015 INTERNATIONAL RESIDENTIAL CODE, WITH AMENDMENTS
WHEREAS, since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS, upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS, the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2015 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed, both in order to align the publication years of the codes
and also because the 2015 publications contain improvements in construction code regulation;
and
WHEREAS, City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals; and
WHEREAS, the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS, the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its citizens that the 2012 International Residential Code, as
previously adopted and amended by the City pursuant to Ordinance 020, 2014, be repealed, and
that in its place, the 2015 International Residential Code, be adopted, with local amendments as
set forth in this Ordinance; and
WHEREAS, pursuant to the City Charter II, Section 7, City Council may enact any
ordinance which adopts a code by reference in whole or in part provided that before adoption of
such ordinance the Council hold a public hearing thereon and that notice of the hearing is
published twice in a newspaper of general circulation published in the City, with one of such
publications occurring at least eight (8) days preceding the hearing and the other publication
occurring at least fifteen (15) days preceding the hearing; and
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WHEREAS, in compliance with Article II, Section 7, the City Clerk published in the Fort
Collins Coloradoan such notice of hearing concerning adoption of the 2015 International
Residential Code on May 21, 2017, and May 28, 2017; and
WHEREAS, attached as Exhibit “A” and incorporated herein by reference is the Notice
of Public Hearing dated May 14, 2107, that was so published and which the Council hereby finds
meets the requirements of Article II, Section 7 of the City Charter. NOW, THEREFORE, BE IT
ORDAINED BY THE COUNCIL OF THE CITY OF FORT COLLINS as follows:
Section 1. That Section 5-26(d) of the Code of the City of Fort Collins is hereby
amended to read as follows:
(d) Pursuant to the power and authority conferred on the City Council by Section 31-
16-202, C.R.S., and Article II, Section 7 of the Charter, the City Council hereby repeals the 2012
Edition of the International Residential Code, and adopts, as the residential building code of the
City, the 20122015 International Residential Code published by the International Code Council,
as amended by the City, which shall have the same force and effect as though set forth in full
herein. The subject matter of the International Residential Code adopted herein includes
comprehensive provisions and standards for the protection of the public health and safety by
prescribing regulations governing the construction, alteration, enlargement, relocation,
replacement, repair, equipment, use and occupancy, location, removal and demolition of, and its
applicability is hereby limited to, individual nonattached one- and two-family dwellings and
multiple single-family dwellings (townhouses) not more than three (3) stories above grade in
height with a separate means of egress, and their accessory structures. As provided in the 2015
International Residential Code, Appendices are not adopted except as expressly set forth in
Section 5-30.
Section 2. That Section 5-30 of the Code of the City of Fort Collins is hereby
repealed and reenacted to read as follows:
Sec. 5-30 Amendments and deletions to code.
The 2015 INTERNATIONAL RESIDENTIAL CODE adopted herein is hereby amended in the
following respects:
(1) Section R101.1 Title, is hereby retained in its entirety with the following
amendments:
R101.1 Title. These provisions shall be known as the Residential Code for One- and
Two-family Dwellings of the City of Fort Collins and shall be cited as such and will be
referred to herein as “this code.”
(2) Section R102.4 Referenced codes and standards, is hereby retained in its entirety with
the following amendments:
R102.4 Referenced codes and standards. The codes and standards referenced in this
code shall be those that are listed in Section 101.4, entitled ‘Referenced Codes’ of the
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adopted International Building Code and shall be considered part of the requirements of
this code to the prescribed extent of each such reference and as further regulated in
Sections R102.4.1 and R102.4.2.
Exception: Where enforcement of a code provision would violate the conditions of the
listing of the equipment or appliance, the conditions of the listing and manufacturer’s
instructions shall apply.
(3) Section R103 Department of Building Safety, is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
SECTION R103
DEPARTMENT OF BUILDING SAFETY
R103.1 Creation of enforcement agency. The Department of Building Safety is hereby
created and the official in charge thereof shall be known as the building official.
R103.2 Appointment. The building official shall be appointed by the chief appointing
authority of the jurisdiction.
R103.3 Deputies. In accordance with the prescribed procedures of this jurisdiction and
with the concurrence of the appointing authority, the building official shall have the
authority to appoint a deputy building official, the related technical officers, inspectors,
plan examiners and other employees. Such employees shall have powers as delegated by
the building official. For the maintenance of existing properties, see the International
Property Maintenance Code.
R103 Code Administration.
R103.1 Entity charged with code administration shall be as determined in accordance
with Section 103, entitled ‘Code Administration’ of the adopted International Building
Code.
(4) Section R105.2 Work exempt from permit, is hereby retained in its entirety with the
following amendments:
. . .
Building:
1. One-story, detached, accessory structures for lawn and garden equipment storage,
tool storage and similar uses, as well as arbors, pergolas, and similar structures,
provided the floor area does not exceed 200 square feet (18.58 m2) 120 square
feet (11.15 m
2
)
or 8 feet (2.438 m) in height, do not house flammable liquids in
quantities exceeding 10 gallons (38 l) per building and are located at least 3 feet
(0.914 m) from an adjoining property line.
2. Fences not over 7 feet (2134 mm) 6 feet (1829 mm) high.
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3. Retaining walls that are not over 4 feet (1219 mm) in height measured from the
bottom of the footing low side grade to the top of the wall, provided the
horizontal distance to the next uphill retaining wall is at least equal to the total
height of the lower retaining wall, unless supporting a surcharge or impounding
Class I, II or IIIA liquids.
4. Water tanks supported directly upon grade if the capacity does not exceed 5,000
gallons (18,927 L) and the ratio of height to diameter or width does not exceed 2
to 1.
5. Platforms intended for human occupancy or walking, sidewalks and driveways
not more than 30 inches (762 mm) above adjacent grade, and are not part of an
accessible route.
6. Painting, papering, tiling, carpeting, cabinets, counter tops and similar finish
work.
7. Prefabricated and portable swimming pools that are less than 24 inches (610 mm)
deep. or wading pools, hot tubs or spas supported directly upon grade when the
walls are entirely above grade and which cannot contain water more than 24
inches (610 mm) deep.
8. Swings and other playground equipment, or play house/structure not exceeding
120 square feet. One elevated play house or play structure per lot designed and
used exclusively for play. Elevated play houses or play structures shall not exceed
64 square feet (5.9 m2)
of floor area nor 6 feet (1.82 m) in height measured from
the floor to the highest point of such structure.
9. Window awnings supported by an exterior wall which do not project more than
54 inches (1372 mm) from the exterior wall and do not require additional support
and do not extend over the public right of way. Window replacement requiring no
structural alteration or no change in the window configuration which reduces the
clear opening and when such work is determined not to be historically significant,
storm window, storm door and rain gutter installation.
10. Decks not exceeding 200 square feet (18.58 m2) in area, that are not more than 30
inches (762 mm) above grade at any point, are not attached to a dwelling and do
not serve the exit door required by Section R311.4.
11. Roofing repair or replacement work not exceeding one square (100 square feet) of
covering per building.
12. Replacement of nonstructural siding, when removal of siding is performed in
accordance with State laws regarding asbestos and lead paint.
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13. Work valued at less than $500 when such work does not involve alteration of
structural components, fire-rated assemblies, plumbing, electrical, mechanical or
fire-extinguishing systems.
14. Decorative ponds, fountains and pools that cannot contain water more than 24
inches (610 mm) deep.
15. Shade cloth structures constructed for nursery or agricultural purposes, not
including service systems. Hoop houses constructed with a flexible frame such as
PVC tubing used for starting plants.
Electrical:
1. Listed cord-and-plug connected temporary decorative lighting.
2. Reinstallation of attachment plug receptacles but not the outlets there for.
3. Replacement of branch circuit over-current devices of the required capacity in the
same location.
4. Electrical wiring, devices, appliances, apparatus or equipment operating at less
than 25 volts and not capable of supplying more than 50 watts of energy.
5. Minor repair work, including the replacement of lamps or the connection of
approved portable electrical equipment to approved permanently installed
receptacles.
Gas:
1. Portable heating, cooking or clothes drying appliances.
2. Replacement of any minor part that does not alter approval of equipment or make
such equipment unsafe.
3. Portable-fuel-cell appliances that are not connected to a fixed piping system and
are not interconnected to a power grid.
Mechanical:
1. Portable heating appliances.
2. Portable ventilation appliances.
3. Portable cooling units.
4. Steam, hot- or chilled-water piping within any heating or cooling equipment
regulated by this code.
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5. Replacement of any minor part that does not alter approval of equipment or make
such equipment unsafe.
6. Portable evaporative coolers.
7. Self-contained refrigeration systems containing 10 pounds (4.54 kg) or less of
refrigerant or that are actuated by motors of 1 horsepower (746 W) or less.
8. Portable-fuel-cell appliances that are not connected to a fixed piping system and
are not interconnected to a power grid.
Plumbing :
1. The stopping of leaks in drains, water, soil, waste or vent pipe; provided, however, that
if any concealed trap, drainpipe, water, soil, waste or vent pipe becomes defective and it
becomes necessary to remove and replace the same with new material, such work shall be
considered as new work and a permit shall be obtained and inspection made as provided
in this code.
2. The clearing of stoppages or the repairing of leaks in pipes, valves or fixtures, and the
removal and reinstallation of water closets, provided such repairs do not involve or
require the replacement or rearrangement of valves, pipes or fixtures.
(5) Section R105.3.2 Time limitation of application, is hereby retained in its entirety with
the following amendments:
R105.3.2 Time limitation of application An application for a permit for any proposed
work shall be deemed to have been abandoned 180 days after the date of filing, unless
such application has been pursued in good faith or a permit has been issued; except that
the building official is authorized to grant one or more extensions of time for additional
periods not exceeding 180 days each provided the application has not expired and is
considered an active application. The extension shall be requested in writing and
justifiable cause demonstrated. Applications that have expired for 30 days or more will be
considered as null and void and all plans discarded.
(6) Section R105.5 Expiration, is hereby retained in its entirety with the following
amendments:
Section R105.5 Expiration. Every permit issued shall become invalid unless the work
authorized by such permit is commenced within 180 days after its issuance, or if the work
authorized by such permit is suspended or abandoned for a period of 180 days after the
time the work is commenced. The building official is authorized to grant, in writing, one
or more extensions of time, for periods not more than 180 days each. The extension shall
be requested in writing and justifiable cause demonstrated.
7
Both prior to and subsequent to the effective date of this code, any work authorized by a
permit regulated by this code or any other building construction code administered by the
building official that involves the construction or alteration of an exterior building
component, assembly or finish material, such as the foundation, wall and roof framing,
sheathing, siding, fenestration, and roof covering, shall be fully finished and completed
for permanent outdoor exposure within 24 months of date of this issuance of such permit.
(7) A new Section R105.10 Premises identification, is hereby added to read as follows:
R105.10 Premises identification during construction. The approved permit number
and street address number shall be displayed and be plainly visible and legible from the
public street or road fronting the property on which any new building is being
constructed.
(8) A new Section R105.11 Transfer of permits, is hereby added to read as follows:
R105.11 Transfer of permits. A current valid building permit may be transferred from
one party to another upon written application to the building official. When any changes
are made to the original plans and specifications that substantially differ from the plans
submitted with the permit, as determined by the building official, a new plan review fee
shall be paid as calculated in accordance with Section R108. A fee of $50 shall be paid
to cover administrative costs for all building permit transfers. No change shall be made
in the expiration date of the original permit.
(9) Section R106.1.4 Information for construction in flood hazard areas, is hereby deleted
in its entirety and the following is hereby added in lieu thereof:
R106.1.4 Information for construction in flood hazard areas. For buildings and
structures located in whole or in part in flood hazard areas as established by Table
R301.2(1), construction documents shall include:
1. Delineation of flood hazard areas, floodway boundaries and flood zones and the design
flood elevation, as appropriate;
2. The elevation of the proposed lowest floor, including basement; in areas of shallow
flooding (AO Zones), the height of the proposed lowest floor, including basement, above
the highest adjacent grade;
3. The elevation of the bottom of the lowest horizontal structural member in coastal high
hazard areas (V Zone); and
4. If design flood elevations are not included on the community’s Flood Insurance Rate
Map (FIRM), the building official and the applicant shall obtain and reasonably utilize
any design flood elevation and floodway data available from other sources.
8
R106.1.4 Information for construction in flood hazard areas. For buildings or
structures regulated under the scope of this code that are in whole or in part located in
flood hazard areas, construction documents shall be submitted as established in
accordance with the City Code, Chapter 10, entitled ‘Flood Prevention and Protection’.
(10) A new Section R106.1.5 Grading performance plans and certificate, is hereby added to
read as follows:
R106.1.5 Grading performance plans and certificate. Every building permit
application for a new building regulated by this code shall be accompanied by a site
drainage/grading performance plan as prescribed by City standards. Drainage plans shall
be submitted to and approved by the City’s Storm Drainage department prior to the
issuance of the permit.
(11) Section R106.3.1 Approval of construction documents, is hereby retained in its entirety
with the following amendments:
R106.3.1 Approval of construction documents. Where the building official issues a
permit, the construction documents shall be approved in writing or by a stamp that
indicates the approved permit number. states “REVIEWED FOR CODE
COMPLIANCE.” One set of construction documents so reviewed shall be retained by the
building official. The other set shall be returned to the applicant, shall be kept at the site
of work and shall be open to inspection by the building official or a duly authorized
representative.
(12) Section R107, Temporary Structures and Uses, is deleted in its entirety.
SECTION R107
TEMPORARY STRUCTURES AND USES
R107.1 General. The building official is authorized to issue a permit for temporary
structures and temporary uses. Such permits shall be limited as to time of service, but
shall not be permitted for more than 180 days. The building official is authorized to grant
extensions for demonstrated cause.
R107.2 Conformance. Temporary structures and uses shall conform to the structural
strength, fire safety, means of egress, light, ventilation and sanitary requirements of this
code as necessary to ensure the public health, safety and general welfare.
R107.3 Temporary power. The building official is authorized to give permission to
temporarily supply and use power in part of an electric installation before such
installation has been fully completed and the final certificate of completion has been
issued. The part covered by the temporary certificate shall comply with the requirements
specified for temporary lighting, heat or power in NFPA 70.
9
R107.4 Termination of approval. The building official is authorized to terminate such
permit for a temporary structure or use and to order the temporary structure or use to be
discontinued.
(13) Section R108, Fees, is hereby deleted in its entirety and the following is hereby added in
lieu thereof:
SECTION R108 FEES
R108.1 Payment of fees. A permit shall not be valid until the fees prescribed by law
have been paid. Nor shall an amendment to a permit be released until the additional fee, if
any, has been paid.
R108.2 Schedule of permit fees. On buildings, structures, electrical, gas, mechanical and
plumbing systems or alterations requiring a permit, a fee for each permit shall be paid as
required, in accordance with the schedule as established by the applicable governing
authority.
R108.3 Building permit valuations. Building permit valuation shall include total value
of the work for which a permit is being issued, such as electrical, gas, mechanical,
plumbing equipment and other permanent systems, including materials and labor.
R108.4 Related fees. The payment of the fee for the construction, alteration, removal or
demolition for work done in connection with or concurrently with the work authorized by
a building permit shall not relieve the applicant or holder of the permit from the payment
of other fees that are prescribed by law.
R108.5 Refunds. The building official is authorized to establish a refund policy.
R108.6 Work commencing before permit issuance. Any person who commences work
requiring a permit on a building, structure, electrical, gas, mechanical or plumbing system
before obtaining the necessary permits shall be subject to a fee established by the
applicable governing authority that shall be in addition to the required permit fees.
R108 Fees
R108.1 Payment of fees. All items relating to fees shall be as specified and in
accordance with Section 109 Fees of the adopted International Building Code, as
amended by the City.
(14) A new Section R109.1.7 Site Survey required, is hereby added to read as follows:
R109.1.7 Site survey required. A survey or improvement location certificate of the site
on which a new building or addition is to be constructed may be required by the building
official to verify that the structure is located in accordance with the approved plans and
any other regulations of the City.
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(15) A new Section R110.2 Change in use, is hereby amended to read as follows:
R110.2 Change in use. Changes in the character, use, or occupancy of an existing
structure shall not be made except as specified in Sections 3408 and 3409 of the
International Building Code when approved by the building official and the structure is in
conformance with this code and the International Building Code, as amended by the City.
(16) Section R112, Board of Appeals, is hereby deleted in its entirety and the following is
hereby added in lieu thereof:
SECTION R112 BOARD OF APPEALS
R112.1 General. In order to hear and decide appeals of orders, decisions or
determinations made by the building official relative to the application and interpretation
of this code, there shall be and is hereby created a board of appeals. The building official
shall be an ex officio member of said board but shall have no vote on any matter before
the board. The board of appeals shall be appointed by the governing body and shall hold
office at its pleasure. The board shall adopt rules of procedure for conducting its business,
and shall render all decisions and findings in writing to the appellant with a duplicate
copy to the building official.
R112.2 Limitations on authority. An application for appeal shall be based on a claim
that the true intent of this code or the rules legally adopted thereunder have been
incorrectly interpreted, the provisions of this code do not fully apply, or an equally good
or better form of construction is proposed. The board shall have no authority to waive
requirements of this code.
R112.3 Qualifications. The board of appeals shall consist of members who are qualified
by experience and training to pass on matters pertaining to building construction and are
not employees of the jurisdiction.
R112.4 Administration. The building official shall take immediate action in accordance
with the decision of the board.
R112 Board of Appeals
R112.1 General. Appeals of decisions, determinations and interpretations of this code
shall be made pursuant to applicable provisions as set forth in Section 113, entitled
‘Board of Appeals’ of the International Building Code, as amended by the City.
(17) Section R113.4 Violation penalties, is hereby retained in its entirety with the following
amendments:
R113.4 Violation penalties. Any person who violates a provision of this code or fails to
comply with any of the requirements thereof or who erects, constructs, alters or repairs a
11
building or structure in violation of the approved construction documents or directive of
the building official, or of a permit or certificate issued under the provisions of this code,
shall be subject to penalties as prescribed by law. shall be guilty of a misdemeanor
subject to the penalties and fines pursuant to Section 1-15 of the City Code, punishable
by a fine of not more than $1,000 or by imprisonment not exceeding 180 days, or both
such fine and imprisonment. Each day that a violation continues after due notice has been
served shall be deemed a separate offense.
(18) A new Section R113.5 Work commencing before permit issuance, is hereby added to
read as follows:
R113.5 Work commencing before permit issuance. In addition to penalties set forth in
R113.4, any person or firm who, before obtaining the necessary permit(s), commences
any construction of, or work on, a building, structure, electrical, gas, mechanical or
plumbing system that is not otherwise exempted from obtaining a permit, shall be subject
to a processing and penalty fee in addition to the standard prescribed permit fee. Such
additional fee shall be equal to the permit fee, except that such fee shall not be less than
$50 nor more than $1,000 for the first such violation. A person or firm committing such
violation repeatedly is subject to processing and penalty fees equal to double the amount
of the permit fee or double the amount of the preceding violation, whichever is greater,
for every same such subsequent violation committed thereafter within any 180-day
period. The foregoing fees may be appealed to the City Manager pursuant to Chapter 2,
Article VI of the City Code.
(19) Section R202 Definitions, is hereby amended to delete, modify, or add, in alphabetical
order, the following definitions:
…
BASEMENT. A story that is not a story above grade plane. (see “Story above grade
plane”). That portion of a building located partly or completely below grade, wherein
the underside of the floor system immediately above is 72 inches (1829 mm) or more
above the surface of an approved permanent basement floor system.
…
CITY. The municipal corporation of Fort Collins, Colorado, including its physical
location and boundaries.
…
CRAWLSPACE. That portion of a building that is conditioned or non-conditioned
space located partly or completely below grade (excluding the under-floor space beneath
below-grade structural floor systems), wherein the underside of the adjacent finished
floor above is less than 72 inches (1829 mm) above the bottom surface of such
crawlspace.
…
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DWELLING. Any building that contains one or two dwelling units used, intended, or
designed to be built, used, rented, leased, let or hired out to be occupied, or that are
occupied for living purposes. Shall mean a building used exclusively for residential
occupancy and for permitted accessory uses, including single-family dwellings, two-
family dwellings and multi-family dwellings. The term dwelling shall not include hotels,
motels, homeless shelters, seasonal overflow shelters tents or other structures designed or
used primarily for temporary occupancy. Any dwelling shall be deemed to be a principal
building.
DWELLING UNIT. A single unit providing complete independent living facilities for
one or more persons, including permanent provisions for living, sleeping, eating, cooking
and sanitation. Shall mean one or more rooms and a single kitchen and at least 1
bathroom, designed, occupied or intended for occupancy as separate quarters for the
exclusive use of a single family for living, cooking and sanitary purposes, located in a
single-family, two-family or multi-family dwelling or mixed-use building.
…
FAMILY shall mean any individual living alone or any number of persons who are all
related by blood, marriage, adoption, guardianship or other duly authorized custodial
relationship, and who live together as a single housekeeping unit and share common
living, sleeping, cooking and eating facilities.
…
FLOOR AREA. The area included within the surrounding exterior walls of a building
or portion thereof, exclusive of vent shafts and courts. The floor area of a building, or
portion thereof, not provided with surrounding exterior walls shall be the usable area
under the horizontal projection of the roof or floor above.
…
GRADE The finished ground level adjoining the building at all exterior walls.
(ADJACENT GROUND ELEVATION). The lowest point of elevation of the finished
surface of the ground, paving or sidewalk, deck or platform with the area between the
building and the property line or, when the property line is more than 5 feet (1.524 m)
from the building, between the building and a line 5 feet (1.524 m) from the building.
…
ROOM, SLEEPING (BEDROOM). A habitable space within a dwelling or other
housing unit designed primarily for the purpose of sleeping. The presence of a bed, cot,
mattress, convertible sofa or other similar furnishing used for sleeping purposes is indicia
for determining that such space or room qualifies as a sleeping room. The presence of
closets and similar storage facilities is not considered a relevant factor in determining
whether or not a room is a sleeping room.
…
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SITE. A parcel of land bounded by a property line or a designated portion of a public
right-of-way.
…
TOWNHOUSE: A single-family dwelling unit constructed in a group of three two or
more attached individual units in which each unit extends from foundation to roof and
with a yard or public way on at least two sides., each of which is separated from the other
from the foundation to the roof and is located entirely on a separately recorded and
platted parcel of land (site) bounded by property lines that is deeded exclusively for such
single-family dwelling.
…
(20) Section 301.1.3 Engineered design, is hereby retained in its entirety with the following
amendments:
R301.1.3 Engineered design. When a building of otherwise conventional light-frame
construction contains structural elements exceeding the limits of Section R301 or
otherwise not conforming to this code, these elements shall be designed in accordance
with accepted engineering practice. The extent of such design need only demonstrate
compliance of nonconventional elements with other applicable provisions and shall be
compatible with the performance of the conventional framed system. Engineered design,
in accordance with the International Building Code International Building Code, as
amended by the City, is permitted for all buildings, structures, and portions thereof
included in the scope of this code.
(21) Section R301.2(1), Climatic and geographic design criteria, is hereby deleted in its
entirety and the following is hereby added in lieu thereof:
For SI: 1 pound per square foot = 0.0479 kPa, 1 mile per hour = 0.447 m/s.
a. Weathering may require a higher strength concrete or grade of masonry than
necessary to satisfy the structural requirements of this code. The weathering
column shall be filled in with the weathering index (i.e., “negligible,” “moderate”
or “severe”) for concrete as determined from the Weathering Probability Map
[Figure R301.2(3)]. The grade of masonry units shall be determined from ASTM
C 34, C 55, C 62, C 73, C 90, C 129, C 145, C 216 or C 652.
ROOF
SNOW
LOAD
WIND
SPEED b
MPH
SEISMIC
DESIGN
CATE-
GORY
SUBJECT TO DAMAGE FROM WINTER
DESIGN
TEMP
AIR
FREEZ-
ING
INDEX
f
MEAN
ANN-
UAL
TEMP.
g
FLOOD
e
HAZARDS
Weathering
a
Roof Ice
14
b. The frost line depth may require deeper footings than indicated in Figure
R403.1(1). The jurisdiction shall fill in the frost line depth column with the
minimum depth of footing below finish grade.
c. The jurisdiction shall fill in this part of the table to indicate the need for
protection depending on whether there has been a history of local subterranean
termite damage.
d. The jurisdiction shall fill in this part of the table with the wind speed from the
basic wind speed map [Figure R301.2(4)A]. Wind exposure category shall be
determined on a site-specific basis in accordance with Section R301.2.1.4.
e. The outdoor design dry-bulb temperature shall be selected from the columns of
971/2-percent values for winter from Appendix D of the International Plumbing
Code. Deviations from the Appendix D temperatures shall be permitted to reflect
local climates or local weather experience as determined by the building official.
f. The jurisdiction shall fill in this part of the table with the seismic design
category determined from Section R301.2.2.1.
g. The jurisdiction shall fill in this part of the table with (a) the date of the
jurisdiction’s entry into the National Flood Insurance Program (date of adoption
of the first code or ordinance for management of flood hazard areas), (b) the
date(s) of the Flood Insurance Study and (c) the panel numbers and dates of all
currently effective FIRMs and FBFMs or other flood hazard map adopted by the
authority having jurisdiction, as amended.
h. In accordance with Sections R905.2.7.1, R905.4.3.1, R905.5.3.1, R905.6.3.1,
R905.7.3.1 and R905.8.3.1, where there has been a history of local damage from
the effects of ice damming, the jurisdiction shall fill in this part of the table with
“YES.” Otherwise, the jurisdiction shall fill in this part of the table with “NO.”
i. The jurisdiction shall fill in this part of the table with the 100-year return period
air freezing index (BF-days) from Figure R403.3(2) or from the 100-year (99
percent) value on the National Climatic Data Center data table “Air Freezing
Index-USA Method (Base 32°F)” at www.ncdc.noaa.gov/fpsf.html.
j. The jurisdiction shall fill in this part of the table with the mean annual
temperature from the National Climatic Data Center data table “Air Freezing
Index- USA Method (Base 32°F)” at www.ncdc.noaa.gov/fpsf.html.
k. In accordance with Section R301.2.1.5, where there is local historical data
documenting structural damage to buildings due to topographic wind speed-up
effects, the jurisdiction shall fill in this part of the table with “YES.” Otherwise,
the jurisdiction shall indicate “NO” in this part of the table.
l. In accordance with Figure R301.2(4)A, where there is local historical data
documenting unusual wind conditions, the jurisdiction shall fill in this part of the
table with “YES” and identify any specific requirements. Otherwise, the
jurisdiction shall indicate “NO” in this part of the table.
m. In accordance with Section R301.2.1.2.1, the jurisdiction shall indicate the
wind-borne debris wind zone(s). Otherwise, the jurisdiction shall indicate “NO”
in this part of the table.
15
For SI: C = [(F)-32]/1.8.
a. Weathering may require a higher strength concrete or grade of masonry than necessary to satisfy the structural
requirements of this code. The weathering column is based on the weathering index (i.e., “severe”) for concrete as
determined from the Weathering Probability Map [Figure R301.2 (3)]. The grade of masonry units shall be determined
from ASTM C 34, C 55, C 62, C 73, C 90, C 129, C 145, C 216 or C 652.
b. Wind exposure category shall be determined on a site-specific basis in accordance with Section R301.2.1.4.
c. Based on the average daily temperature in January greater than 250 F (-40 C) or where the history of local damage from the
effects of ice damming is not substantial.
d. None to slight in accordance with Figure R301.2(7).
e. Date of the City’s entry into the National Flood Insurance Program (date of adoption of the first code or ordinance for
management of flood hazard areas), or the date(s) of the currently effective FIRM and FBFM, or other flood hazard map
adopted by the community.
f. 100-year return period air freezing index (BF-days) from Figure R403.3(2) or from the 100-year (99 percent) value on the
National Climatic Data Center data table Air Freezing Index- USA Method (Base 32o Fahrenheit) at
www.ncdc.noaa.gov/fpsf.html.
g. Mean annual temperature from the National Climatic Data Center data table “Air Freezing Index-USA Method (Base 32o
Fahrenheit) at www.ncdc.noaa.gov/fpsf.html.
(22) A new Section R301.2.1.5.2 Basic wind speed, is hereby added to read as follows:
R301.2.1.5.2 Basic wind speed. The Special Wind Region as indicated on Figure
R301.2(4) of this code shall apply using a basic wind speed, 100 miles per hour (161 kph)
Vasd or 129 miles per hour (208 kph) Vult, based on the exposure category as described in
Section R301.2.1.4, or the equivalent pressure thereto.
(23) Section R302.1 Exterior walls, is hereby retained in its entirety with the following
amendments:
R302.1 Exterior walls. Construction, projections, openings and penetrations of exterior
walls of dwellings and accessory buildings shall comply with Table R302.1 (1) as
amended (1); or dwellings equipped throughout with an automatic sprinkler system
installed in accordance with Section P2904 shall comply with Table R302.1(2).
Exceptions:
1. Walls, projections, openings or penetrations in walls perpendicular to the line
used to determine the fire separation distance.
2. Walls of dwellings and accessory structures located on the same lot.
ROOF
SNOW
LOAD
WIND
SPEED b
MPH
SEISMIC
DESIGN
CATE-
GORY
SUBJECT TO DAMAGE FROM
WINTER
DESIGN
TEMP
AIR
FREEZ-
ING
INDEX
f
MEAN
ANN-
UAL
TEMP.
g
FLOOD
e
HAZARDS
16
3. Detached tool sheds and storage sheds, playhouses and similar structures
exempted from permits are not required to provide wall protection based on
location on the lot. Projections beyond the exterior wall shall not extend over the
lot line.
4. Detached garages accessory to a dwelling located within 2 feet (610 mm) of a lot
line are permitted to have roof eave projections not exceeding 4 inches (102 mm).
5. Foundation vents installed in compliance with this code are permitted.
(24) A new Section R302.1.1 Exterior wall finish materials, is hereby added to read as
follows:
R302.1.1 Exterior wall finish materials Walls of dwellings located within the fire
separation distance (location from property line) of 0 feet to less than 5 feet shall be
constructed of exterior finishes containing cementitious materials.
Exception: Dwellings equipped throughout with an automatic sprinkler system installed
in accordance with Section P2904 or NFPA 13D.
(25) Table R302.1(1) Exterior Walls, is hereby retained in its entirety with the following
amendments:
TABLE R302.1(1) EXTERIOR WALLS
EXTERIOR WALL ELEMENT
MINIMUM FIRE-RESISTANCE
RATING
MINIMUM FIRE
SEPARATION
DISTANCE
WALLS
FIRE-RESISTANCE RATED
1 HOUR-TESTED IN
ACCORDANCE WITH ASTM E 119
OR UL 263 WITH EXPOSURE
FROM BOTH SIDES
< 5 feet
LESS THAN 3
FEET
NOT FIRE RESISTANCE
RATED
0 HOURS
5 feet
3 FEET OR MORE
PROJECTIONS
FIRE-RESISTANCE RATED 1 HOUR ON THE UNDERSIDE
2 TO < 5 feet
3 FEET
Not fire-resistance rated
NOT ALLOWED
0 hours
N/A
5 feet
LESS THAN 2
FEET
OPENINGS IN
WALLS
NOT ALLOWED N/A
LESS THAN 3
FEET
25% maximum of wall
area
0 HOURS
3 FEET
3 FEET OR MORE
17
UNLIMITED
PENETRATIONS ALL
COMPLY WITH SECTION
R302.4
LESS THAN 3
FEET
NONE REQUIRED 3 FEET OR MORE
For SI: 1 foot = 304.8 mm.
N/A = Not Applicable.
a. Roof eave fire-resistance rating shall be permitted to be reduced to 0 hours on the underside of the eave if fireblocking is provided from
the wall top plate to the underside of the roof sheathing.
b. Roof eave fire-resistance rating shall be permitted to be reduced to 0 hours on the underside of the eave provided that gable vent
openings are not installed.
(26) Table R302.1(2) Exterior Walls-Dwellings with Fire Sprinklers, is hereby deleted in its
entirety:
TABLE R302.1(2)
EXTERIOR WALLS—DWELLINGS WITH FIRE SPRINKLERS
EXTERIOR WALL ELEMENT
MINIMUM FIRE-RESISTANCE
RATING
MINIMUM FIRE
SEPARATION
DISTANCE
WALLS
FIRE-RESISTANCE RATED
1 HOUR-TESTED IN
ACCORDANCE WITH ASTM E 119
OR UL 263 WITH EXPOSURE
FROM BOTH SIDES
0 feet
NOT FIRE RESISTANCE RATED 0 HOURS 3 feet
PROJECTIONS
FIRE-RESISTANCE RATED 1 HOUR ON THE UNDERSIDE 2 feet
Not fire-resistance rated
0 hours 3 feet
OPENINGS IN
WALLS
NOT ALLOWED N/A LESS THAN 3 FEET
UNLIMITED 0 HOURS
3 FEET
PENETRATIONS ALL
COMPLY WITH SECTION
R302.4
LESS THAN 3 FEET
NONE REQUIRED 3 FEET OR MORE
For SI: 1 foot = 304.8 mm.
N/A = Not Applicable
a. For residential subdivisions where all dwellings are equipped throughout with an automatic sprinkler system installed
in accordance with Section P2904, the fire separation distance for nonrated exterior walls and rated projections shall be permitted
to be reduced to 0 feet, and unlimited unprotected openings and penetrations shall be permitted, where the adjoining lot provides
an open setback yard that is 6 feet or more in width on the opposite side of the property line.
b. The roof eave fire-resistance rating shall be permitted to be reduced to 0 hours on the underside of the eave if
fireblocking is provided from the wall top plate to the underside of the roof sheathing.
c. The roof eave fire-resistance rating shall be permitted to be reduced to 0 hours on the underside of the eave provided
that gable vent openings are not installed.
18
(27) Section R302.2.1 Continuity is hereby retained in its entirety with the following
amendments:
R302.2.1 Continuity. The fire-resistance-rated common wall or assembly separating
townhouses along property lines shall be continuous from the foundation to the underside
of the roof sheathing, deck or slab. The fire-resistance rating shall extend the full length
of the wall or assembly, including wall extensions through and separating attached and/or
enclosed accessory structures or spaces. The fire-resistance-rating shall be maintained
within concealed spaces of projecting elements such as, roof overhangs, canopies,
marquees and similar projections. The fire- resistant rated adjoining walls shall extend to
the outer edge of horizontal projecting elements such as balconies which extend more
than 24 inches beyond the exterior wall.
(28) Section R302.3 Two-family dwellings is hereby retained in its entirety with the following
amendments:
R302.3 Two-family dwellings. Two-family dwellings shall be provided with a fire-
suppression system as per P2904 at a minimum. Dwelling units in two-family dwellings
shall be separated from each other by wall and/or floor assemblies having not less than a
one-hour fire-resistance rating when tested in accordance with ASTME 119 or UL 263.
Fire-resistance-rated floor-ceiling and wall assemblies shall extend to and be tight against
the exterior wall, and wall assemblies shall extend from the foundation to the underside
of the roof sheathing.
Exceptions:
1. A fire-resistance rating of ½ hour shall be permitted in buildings equipped
throughout with an automatic sprinkler system installed in accordance with NFPA
13.
2. Wall assemblies need not extend through attic spaces when the ceiling is
protected by not less than 5/8-inch (15.9 mm) Type X gypsum board and an attic
draft stop constructed as specified in Section R302.12.1 is provided above and
along the wall assembly separating the dwellings. The structural framing
supporting the ceiling shall also be protected by not less than 1/2-inch (12.7 mm)
gypsum board or equivalent.
(29) Section R308.4.5 Glazing and wet surfaces is hereby retained in its entirety with the
following amendments:
R308.4.5 Glazing and wet surfaces. Glazing in walls, enclosures or fences containing or
facing hot tubs, spas, whirlpools, saunas, steam rooms, bathtubs, showers and indoor or
outdoor swimming pools where the bottom exposed edge of the glazing is less than 60
inches (1524 mm) shall be considered a hazardous location. This shall apply to single
glazing and all panes in multiple glazing.
19
Exception: Glazing that is more than 60 inches (1524 mm), 48 inches (1219 mm),
measured horizontally and in a straight line, from the water’s edge of a bathtub, shower,
hot tub, spa, whirlpool, or swimming pool or from the edge of a shower, sauna or steam
room and not less than 48 inches measured vertically above any standing or walking
surface.
(30) Section R308.4.7 Glazing adjacent to the bottom stair landing is hereby retained in its
entirety with the following amendments:
R308.4.7 Glazing adjacent to the bottom stair landings. Glazing adjacent to the stair
landings at the bottom of a stairway where the glazing is less than 36 inches (914 mm)
above the landing and within a 60 inch (1524 mm) horizontal arc less than 180 degrees of
the top or bottom tread shall be considered a hazardous location.
Exception: The glazing is protected by a guard complying with Section R312 and the
plane of the glass is more than 18 inches (457 mm) from the guard.
. . .
(31) Section R310.1 Emergency escape and rescue opening required is hereby retained in its
entirety with the following amendments:
R310.1 Emergency escape and rescue opening required Basements, habitable attics,
habitable lofts and mezzanines, and every sleeping room, shall have not less than one
operable emergency escape and rescue opening. Where basements contain one or more
sleeping rooms, an emergency escape and rescue opening shall be required in each
sleeping room. Emergency escape and rescue openings shall open directly into a public
way, or to a yard or court that opens to a public way.
Exception: Storm shelters and basements used only to house mechanical equipment not
exceeding a total floor area of 200 square feet (18.58 m2).
(32) Section R310.2.2 Window sill height is hereby retained in its entirety with the following
amendments:
R310.2.2 Window sill height Where a window is provided as the emergency escape and
rescue opening, it shall have a sill height of not more than 44 inches (1118 mm) above
the floor; where the sill height is below grade, it shall be provided with a window well in
accordance with Section R310.2.3. Emergency escape and rescue window openings that
are located more than 72 inches (1829 mm) above the finished grade shall have a sill
height of not less than 24 inches (609 mm) measured from the finished interior side floor.
Exception: Emergency escape and rescue openings located over a roof surface with a
slope of 4:12 or less and extending a minimum of 5 feet horizontally outward from the
window.
20
(33) Section R310.2.3 Window wells is hereby retained in its entirety with the following
amendments:
R310.2.3. Window wells. The horizontal area of the window well shall be not less than 9
square feet (0.9m2), with a horizontal projection and width of not less than 36 inches
(914 mm).The area of the window well shall allow the emergency escape and rescue
opening to be fully opened.
Exceptions:
1. The ladder or steps required by Section R310.2.3.1 shall be permitted to encroach
not more than 6 inches (152 mm) into the required dimensions of the window
well.
2. With the window in the full open position, the bottom window well step may
encroach a maximum of 12 inches (304 mm) into the minimum horizontal
projection, provided the well meets the following criteria:
a. The bottom of the well is not less than 36 inches wide (914 mm), centered
horizontally on the openable portion of the emergency escape and rescue
door or window, and
b. An unobstructed clear horizontal projection of 36 inches (914 mm) is
maintained at the centerline of the openable portion of the emergency
escape and rescue door or window.
c. Window well steps shall not exceed a rise of 16 inches maximum and the
step run shall be 4 inches minimum.
(34) Section R310.2.3.2 Drainage is hereby retained in its entirety with the following
amendments:
R310.2.3.2 Drainage. All window wells shall be designed for proper drainage by
connecting to the building’s foundation drainage system required by Section R405.1 or
by an approved alternative method. The inlet to the drainage system shall be a minimum
of 4 inches (101 mm) below the window sill. Where no drains are required the window
well surface shall be a minimum of 4 inches (101 mm) below the window sill.
Exceptions:
1. A drainage system for window wells is not required when the foundation is on
well-drained soil or sand-gravel mixture soils according to the United Soil
Classification System, Group I Soils, as detailed in Table R405.1. as determined
by the foundation engineer of record.
21
2. A drainage system is not required for new window wells on additions to existing
dwellings.
(35) Section R311.7.1 Width is hereby retained in its entirety with the following amendments:
R311.7.1 Width Stairways shall be not less than 36 inches (914 mm) in clear width at all
points above the permitted handrail height and below the required headroom height.
Handrails shall not project more than 41/2 inches (114 mm) on either side of the stairway
and the clear width of the stairway at and below the handrail height, including treads and
landings, shall be not less than 311/2 inches (787 mm) where a handrail is installed on
one side and 27 inches (698 mm) where handrails are provided on both sides.
Exception: The width of spiral stairways installed as part of an individual dwelling unit
shall be in accordance with Section R311.7.10.1.
(36) Section R311.7.5.1 Risers is hereby retained in its entirety with the following
amendments:
R311.7.5.1 Risers. The riser height shall be not more than 7 3/4 inches (196 mm). The
minimum riser height shall be not less than 4 inches (102 mm). The riser shall be
measured vertically between leading edges of the adjacent treads. The greatest riser
height within any flight of stairs shall not exceed the smallest by more than 3/8 inch (9.5
mm). Risers shall be vertical or sloped from the underside of the nosing of the tread
above at an angle not more than 30 degrees (0.51 rad) from the vertical. Open risers are
permitted provided that the openings located more than 30 inches (762 mm), as measured
vertically, to the floor or grade below do not permit the passage of a 4-inch-diameter (102
mm) sphere.
Exceptions:
1. The opening between adjacent treads is not limited on spiral stairways.
2. The riser height of spiral stairways shall be in accordance with Section
R311.7.10.1.
(37) A new Section R312.1.1.1 Area well retaining walls, is hereby added to read as follows:
R312.1.1.1 Area well retaining walls. Where any area well wall, bulkhead enclosure
wall or similar retaining wall or barrier is located less than 36 inches (914 mm) from the
nearest intended walking surface, parking surface, or driveway and the surface elevation
difference between the higher and lower side of the well wall, bulkhead enclosure wall,
or retaining wall is greater than 36 inches, such wall shall be protected with guards or be
provided with an equivalent barrier.
Exceptions:
22
1. The access side of stairways need not be barricaded.
2. Area wells provided for emergency escape and rescue windows may be protected
with approved grates or covers that comply with Section R310.4.
3. Covers and grates may be used over stairways and other openings used
exclusively for service access or for admitting light or ventilation.
4. Area well walls, bulkhead enclosure walls, or retaining walls adjacent to a
building that are located 24 inches (610 mm) or less measured perpendicular from
the building.
5. Locations where the slope of the embankment or the side of the enclosure or the
opening adjacent to such walls does not exceed 2 horizontal to 1 vertical.
(38) Section R313.2 One- and two-family dwellings automatic fire systems is hereby retained
in its entirety with the following amendments:
R313.2 One- and Two-family dwellings automatic fire systems. An automatic
residential fire sprinkler system shall be installed in one- and two-family dwellings.
Exception: An automatic residential fire sprinkler system shall not be required for
additions or alterations to existing buildings that are not already provided with an
automatic residential sprinkler system.
(39) Section R314.2.2 Alterations, repairs and additions, is hereby retained in its entirety
with the following amendments:
R314.2.2 Alterations, repairs and additions. Where alterations, repairs or additions
requiring a permit occur, or where one or more sleeping rooms are added or created in
existing dwellings, the individual dwelling unit shall be equipped with smoke equipped
with smoke for new dwellings.
Exceptions:
1. Work involving the exterior surfaces of dwellings, such as the replacement of roofing
or siding, the addition or replacement of windows or doors, or the addition of a porch or
deck, are exempt from the requirements of this section.
2. Installation, alteration or repairs of plumbing or mechanical systems are exempt
from the requirements of this section.
(40) Section R315.2.2 Alterations, repairs and additions, is hereby retained in its entirety
with the following amendments:
23
R315.2.2 Alterations, repairs and additions. Where alterations, repairs or additions
requiring a permit occur, or where one or more sleeping rooms are added or created in
existing dwellings, the individual dwelling unit shall be equipped with carbon monoxide
alarms located as required for new dwellings.
Exceptions:
1. Work involving the exterior surfaces of dwellings, such as the replacement of
roofing or siding, or the addition or replacement of windows or doors, or the addition of a
porch or deck, is exempt from the requirements of this section.
2. Installation, alteration or repairs of plumbing or mechanical systems are exempt
from the requirements of this section.
(41) Section R320.1 Scope, is hereby retained in its entirety with the following amendments:
R320.1 Scope. Where there are four or more dwelling units or sleeping units constructed
in a single structure, the applicable provisions of Colorado Revised Statutes, Federal
regulations, and the provisions of Chapter 11 of the adopted International Building Code
for Group R-3 shall apply.
(42) Section R322 Flood-resistant construction is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
R322.1 General.
Buildings and structures constructed in whole or in part in flood hazard areas, including
A or V Zones and Coastal A Zones, as established in Table R301.2(1), and substantial
improvement and restoration of substantial damage of buildings and structures in flood
hazard areas, shall be designed and constructed in accordance with the provisions
contained in this section. Buildings and structures that are located in more than one flood
hazard area shall comply with the provisions associated with the most restrictive flood
hazard area. Buildings and structures located in whole or in part in identified floodways
shall be designed and constructed in accordance with ASCE 24.
R322.1.1 Alternative provisions.
As an alternative to the requirements in Section R322, ASCE 24 is permitted subject to
the limitations of this code and the limitations therein.
R322.1.2 Structural systems.
Structural systems of buildings and structures shall be designed, connected and anchored
to resist flotation, collapse or permanent lateral movement due to structural loads and
stresses from flooding equal to the design flood elevation.
R322.1.3 Flood-resistant construction.
Buildings and structures erected in areas prone to flooding shall be constructed by
methods and practices that minimize flood damage.
24
R322.1.4 Establishing the design flood elevation.
The design flood elevation shall be used to define flood hazard areas. At a minimum, the
design flood elevation shall be the higher of the following:
1. The base flood elevation at the depth of peak elevation of flooding, including
wave height, that has a 1 percent (100-year flood) or greater chance of being equaled or
exceeded in any given year; or
2. The elevation of the design flood associated with the area designated on a flood
hazard map adopted by the community, or otherwise legally designated.
R322.1.4.1 Determination of design flood elevations.
If design flood elevations are not specified, the building official is authorized to require
the applicant to comply with either of the following:
1. Obtain and reasonably use data available from a federal, state or other source; or
2. Determine the design flood elevation in accordance with accepted hydrologic and
hydraulic engineering practices used to define special flood hazard areas. Determinations
shall be undertaken by a registered design professional who shall document that the
technical methods used reflect currently accepted engineering practice. Studies, analyses
and computations shall be submitted in sufficient detail to allow thorough review and
approval.
R322.1.4.2 Determination of impacts.
In riverine flood hazard areas where design flood elevations are specified but floodways
have not been designated, the applicant shall demonstrate that the effect of the proposed
buildings and structures on design flood elevations, including fill, when combined with
other existing and anticipated flood hazard area encroachments, will not increase the
design flood elevation more than 1 foot (305 mm) at any point within the jurisdiction.
R322.1.5 Lowest floor.
The lowest floor shall be the lowest floor of the lowest enclosed area, including
basement, and excluding any unfinished flood-resistant enclosure that is useable solely
for vehicle parking, building access or limited storage provided that such enclosure is not
built so as to render the building or structure in violation of this section.
R322.1.6 Protection of mechanical, plumbing and electrical systems.
Electrical systems, equipment and components; heating, ventilating, air conditioning;
plumbing appliances and plumbing fixtures; duct systems; and other service equipment
shall be located at or above the elevation required in Section R322.2 or R322.3. If
replaced as part of a substantial improvement, electrical systems, equipment and
components; heating, ventilating, air conditioning and plumbing appliances and plumbing
fixtures; duct systems; and other service equipment shall meet the requirements of this
section. Systems, fixtures, and equipment and components shall not be mounted on or
25
penetrate through walls intended to break away under flood loads.
Exception: Locating electrical systems, equipment and components; heating, ventilating,
air conditioning; plumbing appliances and plumbing fixtures; duct systems; and other
service equipment is permitted below the elevation required in Section R322.2 or R322.3
provided that they are designed and installed to prevent water from entering or
accumulating within the components and to resist hydrostatic and hydrodynamic loads
and stresses, including the effects of buoyancy, during the occurrence of flooding to the
design flood elevation in accordance with ASCE 24. Electrical wiring systems are
permitted to be located below the required elevation provided that they conform to the
provisions of the electrical part of this code for wet locations.
R322.1.7 Protection of water supply and sanitary sewage systems.
New and replacement water supply systems shall be designed to minimize or eliminate
infiltration of flood waters into the systems in accordance with the plumbing provisions
of this code. New and replacement sanitary sewage systems shall be designed to
minimize or eliminate infiltration of floodwaters into systems and discharges from
systems into floodwaters in accordance with the plumbing provisions of this code and
Chapter 3 of the International Private Sewage Disposal Code.
R322.1.8 Flood-resistant materials.
Building materials and installation methods used for flooring and interior and exterior
walls and wall coverings below the elevation required in Section R322.2 or R322.3 shall
be flood damage-resistant materials that conform to the provisions of FEMA TB-2.
R322.1.9 Manufactured homes.
The bottom of the frame of new and replacement manufactured homes on foundations
that conform to the requirements of Section R322.2 or R322.3, as applicable, shall be
elevated to or above the elevations specified in Section R322.2 (flood hazard areas
including A Zones) or R322.3 in coastal high-hazard areas (V Zones and Coastal A
Zones). The anchor and tie-down requirements of the applicable state or federal
requirements shall apply. The foundation and anchorage of manufactured homes to be
located in identified floodways shall be designed and constructed in accordance with
ASCE 24.
R322.1.10 As-built elevation documentation.
A registered design professional shall prepare and seal documentation of the elevations
specified in Section R322.2 or R322.3.
R322.2 Flood hazard areas (including A Zones).
Areas that have been determined to be prone to flooding and that are not subject to high-
velocity wave action shall be designated as flood hazard areas. Flood hazard areas that
have been delineated as subject to wave heights between 11/2 feet (457 mm) and 3 feet
(914 mm) or otherwise designated by the jurisdiction shall be designated as Coastal A
Zones and are subject to the requirements of Section R322.3. Buildings and structures
constructed in whole or in part in flood hazard areas shall be designed and constructed in
26
accordance with Sections R322.2.1 through R322.2.3.
R322.2.1 Elevation requirements.
1. Buildings and structures in flood hazard areas, including flood hazard areas
designated as Coastal A Zones, shall have the lowest floors elevated to or above the base
flood elevation plus 1 foot (305 mm), or the design flood elevation.
2. In areas of shallow flooding (AO Zones), buildings and structures shall have the
lowest floor (including basement) elevated to a height of not less than the highest
adjacent grade as the depth number specified in feet (mm) on the FIRM plus 1 foot (305
mm), or not less than 3 feet (15 mm) if a depth number is not specified.
3. Basement floors that are below grade on all sides shall be elevated to or above
base flood elevation plus 1 foot (305 mm), or the design flood elevation, whichever is
higher.
Exception: Enclosed areas below the design flood elevation, including basements with
floors that are not below grade on all sides, shall meet the requirements of Section
R322.2.2.
R322.2.2 Enclosed area below design flood elevation.
Enclosed areas, including crawl spaces, that are below the design flood elevation shall:
1. Be used solely for parking of vehicles, building access or storage.
2. Be provided with flood openings that meet the following criteria and are installed
in accordance with Section R322.2.2.1:
2.1. The total net area of openings shall be not less than 1 square inch (645 mm2) for
each square foot (0.093 m2) of enclosed area where the enclosed area is measured on the
exterior of the enclosure walls, or the openings shall be designed as engineered openings
and the construction documents shall include a statement by a registered design
professional that the design of the openings will provide for equalization of hydrostatic
flood forces on exterior walls by allowing for the automatic entry and exit of floodwaters
as specified in Section 2.6.2.2 of ASCE 24.
2.2. Openings shall be not less than 3 inches (76 mm) in any direction in the plane of
the wall.
R322.2.2.1 Installation of openings.
The walls of enclosed areas shall have openings installed such that:
1. There shall be not less than two openings on different sides of each enclosed area;
if a building has more than one enclosed area below the design flood elevation, each area
shall have openings on exterior walls.
27
2. The bottom of each opening shall be not more than 1 foot (305 mm) above the
higher of the final interior grade or floor and the finished exterior grade immediately
under each opening.
3. Openings shall be permitted to be installed in doors and windows; doors and
windows without installed openings do not meet the requirements of this section.
R322.2.3 Foundation design and construction.
Foundation walls for buildings and structures erected in flood hazard areas shall meet the
requirements of Chapter 4.
Exception: Unless designed in accordance with Section R404:
1. The unsupported height of 6-inch (152 mm) plain masonry walls shall be not
more than 3 feet (914 mm).
2. The unsupported height of 8-inch (203 mm) plain masonry walls shall be not
more than 4 feet (1219 mm).
3. The unsupported height of 8-inch (203 mm) reinforced masonry walls shall be not
more than 8 feet (2438 mm).
For the purpose of this exception, unsupported height is the distance from the finished
grade of the under-floor space to the top of the wall.
R322.2.4 Tanks.
Underground tanks shall be anchored to prevent flotation, collapse and lateral movement
under conditions of the base flood. Above-ground tanks shall be installed at or above the
elevation required in Section R322.2.1 or shall be anchored to prevent flotation, collapse
and lateral movement under conditions of the base flood.
R322.3 Coastal high-hazard areas (including V Zones and Coastal A Zones, where
designated).
Areas that have been determined to be subject to wave heights in excess of 3 feet (914
mm) or subject to high-velocity wave action or wave-induced erosion shall be designated
as coastal high-hazard areas. Flood hazard areas that have been designated as subject to
wave heights between 11/2 feet (457 mm) and 3 feet (914 mm) or otherwise designated
by the jurisdiction shall be designated as Coastal A Zones. Buildings and structures
constructed in whole or in part in coastal high-hazard areas and coastal A Zones, where
designated, shall be designed and constructed in accordance with Sections R322.3.1
through R322.3.7.
R322.3.1 Location and site preparation.
1. New buildings and buildings that are determined to be substantially improved
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pursuant to Section R105.3.1.1 shall be located landward of the reach of mean high tide.
2. For any alteration of sand dunes and mangrove stands, the building official shall
require submission of an engineering analysis that demonstrates that the proposed
alteration will not increase the potential for flood damage.
R322.3.2 Elevation requirements.
1. Buildings and structures erected within coastal high-hazard areas and Coastal A
Zones, shall be elevated so that the bottom of the lowest portion of horizontal structural
members supporting the lowest floor, with the exception of piling, pile caps, columns,
grade beams and bracing, is elevated to or above the base flood elevation plus 1 foot (305
mm) or the design flood elevation, whichever is higher.
2. Basement floors that are below grade on all sides are prohibited.
3. The use of fill for structural support is prohibited.
4. Minor grading, and the placement of minor quantities of fill, shall be permitted
for landscaping and for drainage purposes under and around buildings and for support of
parking slabs, pool decks, patios and walkways.
5. Walls and partitions enclosing areas below the design flood elevation shall meet
the requirements of Sections R322.3.4 and R322.3.5.
R322.3.3 Foundations.
Buildings and structures erected in coastal high-hazard areas and Coastal A Zones shall
be supported on pilings or columns and shall be adequately anchored to such pilings or
columns. The space below the elevated building shall be either free of obstruction or, if
enclosed with walls, the walls shall meet the requirements of Section R322.3.4. Pilings
shall have adequate soil penetrations to resist the combined wave and wind loads (lateral
and uplift). Water-loading values used shall be those associated with the design flood.
Wind-loading values shall be those required by this code. Pile embedment shall include
consideration of decreased resistance capacity caused by scour of soil strata surrounding
the piling. Pile systems design and installation shall be certified in accordance with
Section R322.3.6. Spread footing, mat, raft or other foundations that support columns
shall not be permitted where soil investigations that are required in accordance with
Section R401.4 indicate that soil material under the spread footing, mat, raft or other
foundation is subject to scour or erosion from wave-velocity flow conditions. If
permitted, spread footing, mat, raft or other foundations that support columns shall be
designed in accordance with ASCE 24. Slabs, pools, pool decks and walkways shall be
located and constructed to be structurally independent of buildings and structures and
their foundations to prevent transfer of flood loads to the buildings and structures during
conditions of flooding, scour or erosion from wave-velocity flow conditions, unless the
buildings and structures and their foundations are designed to resist the additional flood
load.
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Exception: In Coastal A Zones, stem wall foundations supporting a floor system above
and backfilled with soil or gravel to the underside of the floor system shall be permitted
provided the foundations are designed to account for wave action, debris impact, erosion
and local scour. Where soils are susceptible to erosion and local scour, stem wall
foundations shall have deep footings to account for the loss of soil.
R322.3.4 Walls below design flood elevation.
Walls and partitions are permitted below the elevated floor, provided that such walls and
partitions are not part of the structural support of the building or structure and:
1. Electrical, mechanical and plumbing system components are not to be mounted on
or penetrate through walls that are designed to break away under flood loads; and
2. Are constructed with insect screening or open lattice; or
3. Are designed to break away or collapse without causing collapse, displacement or
other structural damage to the elevated portion of the building or supporting foundation
system. Such walls, framing and connections shall have a resistance of not less than 10
(479 Pa) and not more than 20 pounds per square foot (958 Pa) as determined using
allowable stress design; or
4. Where wind loading values of this code exceed 20 pounds per square foot (958
Pa), the construction documents shall include documentation prepared and sealed by a
registered design professional that:
4.1. The walls and partitions below the design flood elevation have been designed to
collapse from a water load less than that which would occur during the base flood.
4.2. The elevated portion of the building and supporting foundation system have been
designed to withstand the effects of wind and flood loads acting simultaneously on
structural and nonstructural building components. Water-loading values used shall be
those associated with the design flood. Wind-loading values shall be those required by
this code.
5. Walls intended to break away under flood loads as specified in Item 3 or 4 have
flood openings that meet the criteria in Section R322.2.2, Item 2.
6. In Coastal A Zones, walls shall be provided with flood openings that meet the
criteria of Section R322.2.2.
R322.3.5 Enclosed areas below design flood elevation.
Enclosed areas below the design flood elevation shall be used solely for parking of
vehicles, building access or storage.
R322.3.5.1 Protection of building envelope.
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An exterior door that meets the requirements of Section R609 shall be installed at the top
of stairs that provide access to the building and that are enclosed with walls designed to
break away in accordance with Section R322.3.4.
R322.3.6 Construction documents.
The construction documents shall include documentation that is prepared and sealed by a
registered design professional that the design and methods of construction to be used
meet the applicable criteria of this section.
R322.3.7 Tanks.
Underground tanks shall be anchored to prevent flotation, collapse and lateral movement
under conditions of the base flood. Above-ground tanks shall be installed at or above the
elevation required in Section R322.3.2. Where elevated on platforms, the platforms shall
be cantilevered from or knee braced to the building or shall be supported on foundations
that conform to the requirements of Section R322.3.
R322 Flood-Resistant Construction
Buildings and structures constructed in flood hazard areas shall be designed and
constructed in accordance with the provisions of the Code of the City, Chapter 10, Flood
Prevention and Protection. In riverine flood hazard areas where design flood elevations
are specified but floodways have not been designated, the applicant shall demonstrate
that the cumulative effect of the proposed buildings and structures on design flood
elevations, including fill, when combined with all other existing and anticipated
development, will not increase the design flood elevation more than one foot at any point
within the City.
(43) Section R326 Swimming pools, spas and hot tubs is hereby deleted in its entirety and the
following is hereby added in lieu thereof:
Section 326 Swimming pools, spas and hot tubs General. The design and construction
of pools and spas shall comply with the International Swimming Pool and Spa Code.
SECTION R326
BARRIER REQUIREMENTS
R326.1 General.
The provisions of this Section shall apply to the design of barriers for pools and spas.
These design controls are intended to provide protection against the potential drowning
and near drowning by restricting access to such pools or spas. These requirements
provide an integrated level of protection against potential drowning through the use of
physical barriers and warning devices.
Exceptions:
1. Spas and hot tubs with a lockable safety cover that complies with ASTM F 1346.
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2. Swimming pools with a powered safety cover that complies with ASTM F 1346.
R326.2 Outdoor swimming pools and spas.
Outdoor pools and spas and indoor swimming pools shall be surrounded by a barrier that
complies with Sections 305.2.1 through 305.7.
R326.2.1 Barrier height and clearances.
Barrier heights and clearances shall be in accordance with all of the following:
1. The top of the barrier shall be not less than 48 inches (1219 mm) above grade
where measured on the side of the barrier that faces away from the pool or spa.
Such height shall exist around the entire perimeter of the barrier and for a distance
of 3 feet (914 mm) measured horizontally from the outside of the required barrier.
2. The vertical clearance between grade and the bottom of the barrier shall not
exceed 2 inches (51 mm) for grade surfaces that are not solid, such as grass or
gravel, where measured on the side of the barrier that faces away from the pool or
spa.
3. The vertical clearance between a surface below the barrier to a solid surface, such
as concrete, and the bottom of the required barrier shall not exceed 4 inches (102
mm) where measured on the side of the required barrier that faces away from the
pool or spa.
4. Where the top of the pool or spa structure is above grade, the barrier shall be
installed on grade or shall be mounted on top of the pool or spa structure. Where
the barrier is mounted on the top of the pool or spa, the vertical clearance between
the top of the pool or spa and the bottom of the barrier shall not exceed 4 inches
(102 mm).
R326.2.2 Openings.
Openings in the barrier shall not allow passage of a 4-inch-diameter (102 mm) sphere.
R326.2.3 Solid barrier surfaces.
Solid barriers that do not have openings shall not contain indentations or protrusions that
form handholds and footholds, except for normal construction tolerances and tooled
masonry joints.
R326.2.4 Mesh fence as a barrier.
Mesh fences, other than chain link fences in accordance with Section 305.2.7, shall be
installed in accordance with the manufacturer’s instructions and shall comply with the
following:
1. The bottom of the mesh fence shall be not more than 1 inch (25 mm) above the
deck or installed surface or grade.
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2. The maximum vertical clearance from the bottom of the mesh fence and the solid
surface shall not permit the fence to be lifted more than 4 inches (102 mm) from
grade or decking.
3. The fence shall be designed and constructed so that it does not allow passage of a
4-inch (102 mm) sphere under any mesh panel. The maximum vertical clearance
from the bottom of the mesh fence and the solid surface shall not be more than 4
inches (102 mm) from grade or decking.
4. An attachment device shall attach each barrier section at a height not lower than
45 inches (1143 mm) above grade. Common attachment devices include, but are
not limited to, devices that provide the security equal to or greater than that of a
hook-and-eye type latch incorporating a spring-actuated retaining lever such as a
safety gate hook.
5. Where a hinged gate is used with a mesh fence, the gate shall comply with
Section 305.3.
6. Patio deck sleeves such as vertical post receptacles that are placed inside the patio
surface shall be of a nonconductive material.
7. Mesh fences shall not be installed on top of on ground residential pools.
R326.2.5 Closely spaced horizontal members.
Where the barrier is composed of horizontal and vertical members and the distance
between the tops of the horizontal members is less than 45 inches (1143 mm), the
horizontal members shall be located on the pool or spa side of the fence. Spacing between
vertical members shall not exceed 13/4 inches (44 mm) in width. Where there are
decorative cutouts within vertical members, spacing within the cutouts shall not exceed
13/4 inches (44 mm) in width.
R326.2.6 Widely spaced horizontal members.
Where the barrier is composed of horizontal and vertical members and the distance
between the tops of the horizontal members is 45 inches (1143 mm) or more, spacing
between vertical members shall not exceed 4 inches (102 mm). Where there are
decorative cutouts within vertical members, the interior width of the cutouts shall not
exceed 13/4 inches (44 mm).
R326.2.7 Chain link dimensions.
The maximum opening formed by a chain link fence shall be not more than 1 3/4 inches
(44 mm). Where the fence is provided with slats fastened at the top and bottom which
reduce the openings, such openings shall be not more than 1 3/4 inches (44 mm).
R326.2.8 Diagonal members.
Where the barrier is composed of diagonal members, the maximum opening formed by
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the diagonal members shall be not more than1 3/4 inches (44 mm). The angle of diagonal
members shall be not greater than 45 degrees (0.79 rad) from vertical.
R326.2.9 Clear zone.
There shall be a clear zone of not less than 36 inches (914 mm) between the exterior of
the barrier and any permanent structures or equipment such as pumps, filters and heaters
that can be used to climb the barrier.
R326.2.10 Poolside barrier setbacks.
The pool or spa side of the required barrier shall be not less than 20 inches (508 mm)
from the water’s edge.
R326.3 Gates.
Access gates shall comply with the requirements of Sections 305.3.1 through 305.3.3 and
shall be equipped to accommodate a locking device. Pedestrian access gates shall open
outward away from the pool or spa, shall be self-closing and shall have a self-latching
device.
R326.3.1 Utility or service gates.
Gates not intended for pedestrian use, such as utility or service gates, shall remain locked
when not in use.
R326.3.2 Double or multiple gates.
Double gates or multiple gates shall have at least one leaf secured in place and the
adjacent leaf shall be secured with a self-latching device. The gate and barrier shall not
have openings larger than 1/2 inch (12.7 mm) within 18 inches (457 mm) of the latch
release mechanism. The self-latching device shall comply with the requirements of
Section 305.3.3.
R326.3.3 Latches.
Where the release mechanism of the self-latching device is located less than 54 inches
(1372 mm) from grade, the release mechanism shall be located on the pool or spa side of
the gate not less than 3 inches (76 mm) below the top of the gate, and the gate and barrier
shall not have openings greater than 1/2inch (12.7 mm) within 18 inches (457 mm) of the
release mechanism.
R326.4 Structure wall as a barrier.
Where a wall of a dwelling or structure serves as part of the barrier and where doors or
windows provide direct access to the pool or spa through that wall, one of the following
shall be required:
1. Operable windows having a sill height of less than 48 inches (1219 mm) above
the indoor finished floor and doors shall have an alarm that produces an audible
warning when the window, door or their screens are opened. The alarm shall be
listed and labeled as a water hazard entrance alarm in accordance with UL 2017.
In dwellings or structures not required to be Accessible units, Type A units or
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Type B units, the operable parts of the alarm deactivation switches shall be
located 54 inches (1372 mm) or more above the finished floor. In dwellings or
structures required to be Accessible units, Type A units or Type B units, the
operable parts of the alarm deactivation switches shall be located not greater than
54 inches (1372 mm) and not less than 48 inches (1219 mm) above the finished
floor.
2. A safety cover that is listed and labeled in accordance with ASTM F 1346 is
installed for the pools and spas.
3. An approved means of protection, such as self-closing doors with self-latching
devices, is provided. Such means of protection shall provide a degree of
protection that is not less than the protection afforded by Item 1 or 2.
R326.5 On ground residential pool structure as a barrier.
An on ground residential pool wall structure or a barrier mounted on top of an on ground
residential pool wall structure shall serve as a barrier where all of the following
conditions are present:
1. Where only the pool wall serves as the barrier, the bottom of the wall is on grade,
the top of the wall is not less than 48 inches (1219 mm) above grade for the entire
perimeter of the pool, the wall complies with the requirements of Section 305.2
and the pool manufacturer allows the wall to serve as a barrier.
2. Where a barrier is mounted on top of the pool wall, the top of the barrier is not
less than 48 inches (1219 mm) above grade for the entire perimeter of the pool,
and the wall and the barrier on top of the wall comply with the requirements of
Section 305.2.
3. Ladders or steps used as means of access to the pool are capable of being secured,
locked or removed to prevent access except where the ladder or steps are
surrounded by a barrier that meets the requirements of Section 305.
4. Openings created by the securing, locking or removal of ladders and steps do not
allow the passage of a 4inch (102 mm) diameter sphere.
5. Barriers that are mounted on top of on ground residential pool walls are installed
in accordance with the pool manufacturer’s instructions.
R326.6 Natural barriers.
In the case where the pool or spa area abuts the edge of a lake or other natural body of
water, public access is not permitted or allowed along the shoreline, and required barriers
extend to and beyond the water’s edge not less than 18 inches (457 mm), a barrier is not
required between the natural body of water shoreline and the pool or spa.
R326.7 Natural topography.
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Natural topography that prevents direct access to the pool or spa area shall include but
not be limited to mountains and natural rock formations. A natural barrier as approved by
the building official shall be acceptable provided that the degree of protection is not less
than the protection afforded by the requirements of Sections 305.2 through 305.5.
R326.8 Entrapment avoidance.
Suction outlets shall be designed and installed in accordance with ANSI/APSP-7.
R326.9 Barriers around decorative pools, fountains, and ponds.
Decorative pools, fountains, and ponds which can contain water deeper than 24 inches
(610 mm), shall be protected by barriers installed in accordance with section AG105.2.
(44) A new Section R327 Resource Efficiency is hereby added to read as follows:
R327 Resource Efficiency
R327.1 Construction waste management. For new buildings, and additions over 2,500
square feet or remodels over 2,500 square feet a construction waste management plan
acceptable to the building official that includes recycling of concrete and masonry, wood,
metals and cardboard, is required at time of application for a building permit. The
construction waste management plan shall be implemented and conspicuously posted on
the construction site. Compliance shall be certified by the hauler through receipts and
signed affidavits. Substantive changes to the plan shall be subject to prior approval by the
building official.
R327.1.1 Building demolitions. Buildings or portions of buildings which are removed
shall be processed in such a way as to safely remove all asbestos and lead paint
contaminants. All metals, asphalt, concrete and masonry that are free of asbestos and lead
paint shall be recycled, and where possible, all remaining materials, such as doors,
windows, cabinets, fixtures, and wood, shall be recycled. A construction waste
management plan shall be submitted at time of demo permit. Compliance with the
CWMP shall be certified by the hauler through receipts and signed affidavits.
(45) A new Section R328 Indoor Environmental Quality hereby added to read as follows:
R328 Indoor Environmental Quality (IEQ)
R328.1 Low-volatile organic compound (VOC) materials. Construction materials,
floor coverings and site applied finishes, including sealants and adhesives, resilient
flooring, carpeting and pad, site-applied paints, stains and varnishes, structural wood
panels, hardwood veneer plywood, particle board and fiber board building products, and
insulation shall meet specified volatile organic compound (VOC) emissions limits in
accordance with California Department of Public Health (CDPH) 01350;
GREENGUARD Environmental Institute GGPS.001 standard for building materials and
finishes; and Green Seal® standards. Documentation demonstrating compliance be
required with delivery of such materials and shall be available for inspection.
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Exception: For alterations to existing buildings, carpeting and pad, structural wood
panels, hardwood, veneer plywood, particle board and fiber board building products and
insulation are not subject to this requirement.
(46) A new Section R329 Outdoor Environmental Quality is hereby added to read as follows:
R329 Outdoor Environmental Quality (OEQ)
R329.1 Exterior lighting. All exterior lighting fixtures associated with new buildings shall
have the “Fixture Seal of Approval” from the International Dark-Sky Association (IDA) or
meet equivalent criteria approved by the building official. Lighting placement shall conform
to IDA Model Lighting Ordinance for Lighting Zone LZ-1. Light shall be shielded such that
the lamp itself or the lamp image is not directly visible outside the property perimeter.
(47) A new Section R330 Operations and Maintenance and Building Owner Education is
hereby added to read as follows:
R330 Operations and Maintenance and Building Owner Education
R330.1 Operations and maintenance. In new buildings, operation and maintenance
information addressing all installed systems shall be provided for the building owner.
(48) Section R401.1 Application is hereby retained in its entirety with the following
amendments:
R401.1 Application. The provisions of this chapter shall control the design and
construction of the foundation and foundation spaces for all buildings. In addition to the
provisions of this chapter, the design and construction of foundations in areas prone to
flooding as established by Table R301.2(1) shall meet the provisions of Section R322.
All foundations shall be designed by a qualified professional licensed in the State of
Colorado. Such designs shall be performed in accordance with accepted and approved
engineering practices, including considerations for soil load-bearing capacities, surface
and subsurface water conditions, adequate foundation and floor drainage, adequate
ventilation of enclosed interior foundation spaces, and foundation waterproofing and
damp-proofing. Final engineer’s reports, indicating his/her acceptance of the above
requirements, shall be submitted to the building official prior to the issuance of the
Certificate of Occupancy.
Exceptions:
1. When approved by the building official, engineering is not required on
foundations for non-habitable detached accessory buildings, or habitable additions of less
than 120 sq. ft., when such structures are unlikely to be located on expansive,
compressible, or shifting soils, soils of unknown characteristics, or for other valid
reasons.
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2. The provisions of this chapter shall be permitted to be used for wood foundations
only in the following situations:
1a. In buildings that have no more than two floors and a roof.
2b. Where interior basement and foundation walls are constructed at intervals
not exceeding 50 feet (15 240 mm).
Wood foundations in Seismic Design Category D0, D1 or D2 shall be designed in
accordance with accepted engineering practice.
(49) A new Section, R401.5 Placement of backfill is hereby added to read as follows:
R401.5 Placement of backfill. The excavation outside the foundation, including utility
trenches and excavation ramp, shall be backfilled with soil that is substantially free of
organic material, construction debris and cobbles, boulders, and solid soil masses larger
than 6 inches (152 mm) diameter; or of frozen soil. The backfill shall be placed in lifts
and compacted as set forth in the engineering documents. The backfill shall be placed in a
manner that does not damage the foundation or the waterproofing or damp-proofing
material. Excavation ramps shall be backfilled in such a manner that the ramp does not
become a conduit for surface water to flow toward the foundation. Where excavations
include more than one house, a specially engineered drainage system may be required by
the building official.
(50) Section R403.1.4.1Frost protection is hereby retained in its entirety with the following
amendments:
R403.1.4.1 Frost protection. Except where otherwise protected from frost, foundation
walls, piers and other permanent supports of buildings and structures shall be protected
from frost by one or more of the following methods:
1. Extended below the frost line specified in Table R301.2. (1).
2. Constructed in accordance with Section R403.3.
3. Constructed in accordance with ASCE 32.
4. Erected on solid rock.
Exceptions:
1. Protection of freestanding unconditioned accessory structures with an area of 600
square feet (56 m2) or less, of light-frame construction, with an eave height of 10
feet (3048 mm) or less shall not be required.
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2. Protection of freestanding unconditioned accessory structures with an area of 400
square feet (37 m2) or less, of other than light-frame construction, with an eave
height of 10 feet (3048 mm) or less shall not be required.
3. Decks not supported by a dwelling need not be provided with footings that extend
below the frost line.
Footings shall not bear on frozen soil unless the frozen condition is permanent.
(51) Section R405.1 Concrete or masonry foundations, is hereby retained in its entirety,
including Table 405.1, with the following amendments:
R405.1 Concrete or masonry foundations. Drains shall be provided around all concrete
or masonry foundations that retain earth and enclose habitable or usable spaces located
below grade. Drainage tiles, gravel or crushed stone drains, perforated pipe or other
approved systems or materials shall be installed at or below the area to be protected and
shall discharge by gravity or mechanical means into an approved drainage system. Gravel
or crushed stone drains shall extend at least 1 foot (305 mm) beyond the outside edge of
the footing and 6 inches (152 mm) above the top of the footing and be covered with an
approved filter membrane material. The top of open joints of drain tiles shall be protected
with strips of building paper. Perforated drains shall be surrounded with an approved
filter membrane or the filter membrane shall cover the washed gravel or crushed rock
covering the drain. Drainage tiles or perforated pipe shall be placed on a minimum of 2
inches (51 mm) of washed gravel or crushed rock at least one sieve size larger than the
tile joint opening or perforation and covered with not less than 6 inches (152 mm) of the
same material. Drains consisting of piping conforming with ASTM Designation D2729-
89 shall be provided adjacent to the lowest concrete or masonry foundations that retain
earth and enclose spaces that are partially or entirely located below grade. Unless
perimeter drains are designed to daylight, they shall terminate in sump pits with an
electrical power source permanently installed within 36 inches (914 mm) of the sump
opening. Piping for sump pumps shall discharge at least 60 inches (1524 mm) away from
foundations or as otherwise approved by the building official. Drains shall be installed in
bedding materials that are of such size and installed in such manner to allow ground
water to seep into the perimeter drain. Filter fabric or other measures to restrict the
passage of fines shall be used to further protect the perimeter drain from blockage.
Exception: A drainage system is not required where when the engineer of record has
determined that the foundation is installed on well-drained ground or sand gravel mixture
soils according to the Unified Soil Classification System, Group I Soils, as detailed in
Table R405.1.
…
(52) A new Section R405.3 Landscape irrigation, is added to read as follows:
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R405.3 Landscape irrigation. Landscape irrigation systems, other than drip systems,
shall be installed such that the ground surface within 60 inches (1524 mm), measured
perpendicular from the foundation, is not irrigated.
(53) Section R408.1Ventilation is hereby deleted in its entirety and the following is hereby
added in lieu thereof:
R408.1 Ventilation. The under-floor space between the bottom of the floor joists and the
earth under any building (except space occupied by a basement) shall have ventilation
openings through foundation walls or exterior walls. The minimum net area of ventilation
openings shall not be less than 1 square foot (0.0929 m2) for each 150 square feet (14
m2) of under-floor space area, unless the ground surface is covered by a Class 1 vapor
retarder material. When a Class 1 vapor retarder material is used, the minimum net area
of ventilation openings shall not be less than 1 square foot (0.0929 m2) for each 1,500
square feet (140 m2) of under-floor space area. One such ventilating opening shall be
within 3 feet (914 mm) of each corner of the building.
R408.1 Crawl space soil gas retarder. All exposed earth in a crawl space shall be
covered with a minimum 3 mil cross-linked Class I vapor retarder. Joints of the vapor
retarder shall overlap by 6 inches (152 mm) and shall be sealed or taped. The edges of
the vapor retarder shall extend at least 6 inches (152 mm) up the perimeter stem wall and
any footing pads on grade, and be permanently attached and sealed to the stem wall or
footing pads. Reference adopted Appendix F of this code.
(54) Section R408.2 Openings for under-floor ventilation is hereby deleted in its entirety and
the following is hereby added in lieu thereof:
R408.2 Openings for under-floor ventilation. The minimum net area of ventilation
openings shall not be less than 1 square foot (0.0929 m2) for each 150 square feet (14
m2) of under-floor area. One ventilation opening shall be within 3 feet (915 mm) of each
corner of the building. Ventilation openings shall be covered for their height and width
with any of the following materials provided that the least dimension of the covering
shall not exceed 1/4 inch (6.4 mm):
1. Perforated sheet metal plates not less than 0.070 inch (1.8 mm) thick.
2. Expanded sheet metal plates not less than 0.047 inch (1.2 mm) thick.
3. Cast-iron grill or grating.
4. Extruded load-bearing brick vents.
5. Hardware cloth of 0.035 inch (0.89 mm) wire or heavier.
6. Corrosion-resistant wire mesh, with the least dimension being 1/8 inch (3.2 mm) thick.
Exception: The total area of ventilation openings shall be permitted to be reduced to
1/1,500 of the under-floor area where the ground surface is covered with an approved
Class I vapor retarder material and the required openings are placed to provide cross
ventilation of the space. The installation of operable louvers shall not be prohibited.
R408.2 Crawl space. Crawl spaces shall be designed and constructed to be inside the
building thermal envelope, in accordance with the insulation and air sealing requirements
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for crawl space walls and rim joists of Section N1102 of this code. Crawl spaces shall not
be vented to the exterior. They shall be conditioned using one of the following
approaches:
1. Continuously operated mechanical exhaust ventilation at a rate equal to 1 cubic
foot per minute (0.47 L/s) for each 50 square feet (4.7m2) of crawlspace floor
area, including an air pathway to the common area (such as a duct or transfer
grille);
2. Conditioned air supply sized to deliver at a rate equal to 1 cubic foot per minute
(0.47 L/s) for each 50 square feet (4.7 m2) of under-floor area, including a return
air pathway to the common area (such as a duct or transfer grille);
3. Plenum in existing structures complying with Section M1601.5, if under-floor
space is used as a plenum.
Exception: Crawl spaces shall be permitted to be designed and constructed as
unconditioned spaces, outside the building thermal envelope, provided the following
requirements are met:
1. The floor above the crawl space is part of the building thermal envelope. It shall
meet the insulation requirements of Table N1102.1.1 of this code and shall be air-
sealed in accordance with Section N1102.4.1 of this code.
2. Ventilation openings shall be placed through foundation walls or exterior walls.
The minimum net area of ventilation openings shall not be less than 1 square foot
(0.0929 m2) for each 1,500 square feet (140 m2) of under-floor space area. One
such ventilating opening shall be within 3 feet (914 mm) of each corner of the
building.
3. Ventilation openings shall be covered for their height and width with any of the
following materials provided that the least dimension of the covering shall not
exceed 1/4 inch (6.4 mm):
a. Perforated sheet metal plates not less than 0.070 inch (1.8 mm) thick.
b. Expanded sheet metal plates not less than 0.047 inch (1.2 mm) thick.
c. Cast-iron grill or grating.
d. Extruded load-bearing brick vents.
e. Hardware cloth of 0.035 inch (0.89 mm) wire or heavier.
f. Corrosion-resistant wire mesh, with the least dimension being 1/8 inch
(3.2 mm) thick.
4. The installation of operable louvers shall not be prohibited.
(55) A new Section R408.2.1 Ventilated under-floor spaces, is hereby added to read as
follows:
41
R408.2.1 Ventilated under-floor spaces. Floor systems above ventilated under-floor
spaces or floors open to the exterior or floors above an unconditioned space below shall
be insulated to R-30. Floor system shall be sealed to prevent heat loss and air infiltration.
(56) Section R408.3 Unvented crawl space 3 is hereby retained in its entirety with the
following amendments:
R408.3 Unvented crawl space. Ventilation openings in under-floor spaces specified in
Sections R408.1 and R408.2 shall not be required where the following items are
provided:
1. Exposed earth is covered with a continuous Class I vapor retarder. Joints of the
vapor retarder shall overlap by 6 inches (152 mm) and shall be sealed or taped.
The edges of the vapor retarder shall extend not less than 6 inches (152 mm) up
the stem wall and shall be attached and sealed to the stem wall or insulation.
2. One of the following is provided for the under-floor space:
2.1. Continuously operated mechanical exhaust ventilation at a rate equal to 1
cubic foot per minute (0.47 L/s) for each 50 square feet (4.7m2) of crawl space
floor area, including an air pathway to the common area (such as a duct or transfer
grille), and perimeter walls insulated in accordance with N1102.2.11 of this code.
2.2. Conditioned air supply sized to deliver at a rate equal to 1 cubic foot per
minute (0.47 L/s) for each 50 square feet (4.7 m2) of under-floor area, including a
return air pathway to the common area (such as a duct or transfer grille), and
perimeter walls insulated in accordance with Section N1102.2.11 of this code.
2.3. Plenum in existing structures complying with Section M1601.5, if under-floor
space is used as a plenum.
3. The perimeter walls enclosing un-vented crawl spaces shall be thermally insulated
to R-15 continuous insulation or R-19 batt insulation in accordance with Table
N1102.1.2.
(57) A new Section R408.3.1 Spaces under below-grade floors, is hereby added to read as
follows:
R408.3.1 Spaces under below-grade floors. Mechanical ventilation systems for spaces
under below-grade floors shall be installed as designed by a professional engineer.
Exception: Below grade floors designed specifically to accommodate soils expansion
and less than 18 inches in depth.
(58) A new Section R703.8.1Fenestration Installation is hereby added to read as follows:
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R703.8.1 Fenestration installation. For all new construction, all fenestration
installations shall be in accordance with American Architectural Manufacturers
Association (AAMA) Standards/ Specifications for Windows, Doors and Skylights and
shall be supervised or inspected by an individual certified as an Installation Master or by
one having attended training by the manufacturer of the specific window product being
installed. Fenestration perimeter flashing shall be installed per Installation Masters
Chapter 16 Method A or A1, including either rigid or flexible sill pan flashing.
(59) A new Section R703.11.1.5 Vinyl siding on new buildings is hereby added to read as
follows:
Section R703.11.1.5 Vinyl siding on new buildings. Vinyl siding on new buildings shall
be installed over one-hour fire-rated assemblies listed for exterior fire exposure, in both
the vertical and horizontal plane.
(60) A new Section R703.13.2 Insulated vinyl siding on new buildings is hereby added to
read as follows:
Section R703.13.2 Insulated vinyl siding on new buildings. Insulated vinyl siding on
new buildings shall be installed over one-hour fire-rated assemblies listed for exterior fire
exposure, in both the vertical and horizontal plane.
(61) A new Section R703.14.3 Polypropylene siding on new buildings is hereby added to
read as:
R703.14.3 Polypropylene siding on new buildings. Polypropylene on new buildings
shall be installed over one-hour fire-rated assemblies listed for exterior fire exposure, in
both the vertical and horizontal plane.
(62) Section R902.1 Roofing Covering Materials is hereby retained in its entirety with the
following amendments:
R902.1 Roofing covering materials. Roofs shall be covered with materials as set forth
in Sections R904 and R905. Class A, B or C roofing shall be installed in areas designated
by law as requiring their use or when the edge of the roof is less than 3 feet (914 mm)
from a lot line. Classes A, B and C roofing required by this section to be listed shall be
tested in accordance with UL 790 or ASTM E 108.
Exceptions:
1. Class A roof assemblies include those with coverings of brick, masonry and
exposed concrete roof deck.
2. Class A roof assemblies also include ferrous or copper shingles or sheets, metal
sheets and shingles, clay or concrete roof tile, or slate installed on noncombustible decks.
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3. Class A roof assemblies include minimum 16 oz/ft2 copper sheets installed over
combustible decks.
4. Class A roof assemblies include slate installed over underlayment over
combustible decks.
Except as otherwise allowed, roofs shall be covered with materials listed as Class A and
with materials as set forth in Sections R904 and R905. Classes A, B and C roofing
required to be listed by this Section shall be tested in accordance with UL 790 or ASTM
E 108. Roof assemblies with coverings of brick, masonry, slate, clay or concrete roof tile,
exposed concrete roof deck, ferrous or copper shingles or sheets, and metal sheets and
shingles, shall be considered Class A roof coverings.
Exception: Any Class B or Class C roof covering may be applied on any new
construction that is added to an existing building, provided the roof extremities of such
existing building and new construction are located a minimum distance of 5 feet (1.524
m) from the nearest adjacent property line and are a minimum distance of 10 feet (3.048
m) from another building.
(63) Section R903.2.2 Crickets and saddles is hereby retained in its entirety with the
following amendments:
R903.2.2 Crickets and saddles. A cricket or saddle shall be installed on the ridge side of
any chimney or penetration more than 30 inches (762 mm) 18 inches (457 mm) wide as
measured perpendicular to the slope. Cricket or saddle coverings shall be sheet metal or
of the same material as the roof covering.
Exceptions:
1. Unit skylights installed in accordance with Section R308.6 and flashed in
accordance with the manufacturer’s instructions shall be permitted to be installed without
a cricket or saddle.
2. Re-roofing per Section R907.
(64) Section R905.1.2 Ice barriers is hereby retained in its entirety with the following
amendments:
R905.1.2 Ice barriers. In areas where there has been a history of ice forming along the
eaves causing a backup of water as designated in Table R301.2(1), an ice barrier shall be
installed for asphalt shingles, metal roof shingles, mineral-surfaced roll roofing, slate and
slate-type shingles, wood shingles and wood shakes. The ice barrier shall consist of not
fewer than two layers of underlayment cemented together, or a self-adhering polymer-
modified bitumen sheet shall be used in place of normal underlayment and extend from
the lowest edges of all roof surfaces to a point not less than 24 inches (610 mm) 12 inches
(304 mm) inside the exterior wall line of the building. On roofs with slope equal to or
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greater than 8 units vertical in 12 units horizontal, the ice barrier shall also be applied not
less than 36 inches (914 mm) measured along the roof slope from the eave edge of the
building.
Exceptions:
1. Detached accessory structures not containing conditioned floor area.
2. Re-roofing where the existing roof covering has not been removed.
(65) Section R905.2.1 Sheathing requirements is hereby retained in its entirety with the
following amendments:
R905.2.1 Sheathing requirements Asphalt shingles shall be fastened to solidly sheathed
decks. Gaps in the solid decking shall not exceed 1/8 inch.
(66) Section R908.1 General is hereby retained in its entirety with the following amendments:
R908.1 General. Materials and methods of application used for recovering or replacing
an existing roof covering shall comply with the requirements of Chapter 9. No portion of
an existing nonrated roof covering may be permanently replaced or covered with more
than one square of nonrated roof covering.
Exceptions:
1. Reroofing shall not be required to meet the minimum design slope requirement of
one-fourth vertical in 12 units horizontal (2-percent slope) in Section R905 for
roofs that provide positive roof drainage.
2. For roofs that provide positive drainage, re-covering or replacing an existing roof
covering shall not require the secondary (emergency overflow) drains or scuppers
of Section R903.4.1 to be added to an existing roof.
3. Any existing roof covering system may be replaced with a roof covering of the
same materials and classification, provided the replacement roof covering has a
minimum rating of Class C.
(67) Section R1004.1 General is hereby retained in its entirety with the following
amendments:
Factory-built fireplaces shall be listed and labeled and shall be installed in accordance
with the conditions of the listing. Factory-built fireplaces shall be tested in accordance
with UL 127. Solid fuel fireplaces, fireplace stoves and solid-fuel-type room heaters
45
shall also comply with Section 5-110 of the City Code and shall be provided with a spark
arrestor.
(68) Section R1004.4 Unvented Gas log heaters is hereby deleted in its entirety.
R1004.4 Unvented gas log heaters. An unvented gas log heater shall not be installed in
a factory-built fireplace unless the fireplace system has been specifically tested, listed and
labeled for such use in accordance with UL 127.
(69) A new Section N1101.1.1 Thermal design parameters is hereby added to read as
follows:
N1101.1.1 Thermal design parameters. The following thermal design parameters in
Table N1101.1 shall be used for calculations required under this chapter.
TABLE N1101.1
THERMAL DESIGN PARAMETERS
CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA
Winter Outdoor, Design Dry-bulb (oF) = 6
Winter Indoor, Design Dry-bulb (oF) = 72
Summer, Outdoor Design Dry-bulb (oF) = 90
Summer, Indoor Design Dry-bulb (oF) = 75
Summer, Outdoor Design Wet-bulb (oF) = 62
Summer, Indoor Design Wet-bulb (oF) = 62
Degree Days heating = 5710
Degree days cooling = 694
For SI: C = [(F)-32]/1.8.
Note: based on the 2013 Colorado Climate Center analysis.
(70) Section N1101.5 (R103.2) Information on construction documents, is hereby kept
and preserved in its entirety with the following amendments:
N1101.5 (C103 R103.2) Information on construction documents. Construction
documents for all buildings shall describe the exterior wall envelope in sufficient detail to
determine compliance with this code. When applicable as determined by the building
official, construction documents submitted as part of the building permit application shall
provide details of the exterior wall envelope as required, including flashing, intersections
of dissimilar materials, corners, end details, control joints, intersections at roof, eaves, or
parapets, means of drainage, water-resistive membrane, and details around openings.
The construction documents shall include manufacturing installation instructions that
provide supporting documentation that the proposed penetration and opening details
described in the construction documents maintain the weather resistance of the exterior
wall envelope. The supporting documentation shall fully describe the exterior wall
system which was tested, where applicable, as well as the test procedure used.
Construction documents shall be drawn to scale upon suitable material. Electronic media
Fort Collins is in Climate Zone 5
46
documents are permitted to be submitted when approved by the building official.
Construction documents shall be of sufficient clarity to indicate the location, nature and
extent of the work proposed, and shows in sufficient detail pertinent data and features of
the building, systems and equipment as herein governed. Details shall include, but are not
limited to, as applicable,
1. insulation materials and their R-values;
2. fenestration schedule listing sizes, U-factors and SHGCs;
3. area-weighted U-factor and SHGC calculations;
4. mechanical system design criteria;
5. mechanical and service water heating system and equipment types, sizes and
efficiencies;
6. economizer description;
67. equipment and systems controls;
8. fan motor horsepower (hp) and controls;
79. duct sealing, duct and pipe insulation and location;
10. lighting fixture schedule with wattage and control narrative; and
811. air sealing details.
(71) Table N1102.1.2 (Table R402.1.2) Insulation and fenestration requirements by
component is hereby retained in its entirety with the following amendments:
TABLE N1102.1.2
INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT
a
CLIMATE
ZONE
HEATING
SYSTEM
TYPE
FENESTRATION
U-FACTORb
SKYLIGHTb
U-FACTOR
GLAZED
FENESTRATION
SHGC
CEILING
R-
VALUE
WOOD
FRAME
WALL
R-VALUE
f g
MASS
WALL
R-
VALUEg
FLOOR
R-
VALUE
e
BASEMENTc
WALL
R-VALUE
SLABd
R-
VALUE
&
DEPTH
CRAWLc
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b. Exception: Skylights may be excluded from glazed fenestration SHGC requirements in Climate Zones 1
through 3 where the SHGC for such skylights does not exceed 0.30.The fenestration U-factor column excludes
skylights. The SHGC column applies to all glazed fenestration.
c. “15/19” means R-15 continuous insulation on the interior or exterior of the foundation wall or R-19cavity
insulation at the interior of the foundation wall. “15/19” shall be permitted to be met with R-13 cavity insulation on the
interior of the foundation wall plus R-5 continuous insulation on the interior or exterior of the foundation wall. “10/13”
means R-10 continuous insulation on the interior or exterior of the foundation wall or R-13 cavity insulation at the
interior of the foundation wall.
d. R-5 shall be added to the required slab edge R-values for heated slabs. Insulation depth shall be the depth of
the footing or 2 feet, whichever is less in Zones 1 through 3 for heated slabs.
e. There are no SHGC requirements in the Marine Zone. Insulation shall fill the framing cavity, R-19 minimum.
f. Insulation depth shall be the depth of the footing or 2 feet, whichever is less in Zones 1 through 3 for heated
slabs.First value is cavity insulation, second is insulated sheathing or siding, so “20+5” means R-20 cavity insulation
plus R-5 insulated sheathing. If structural sheathing covers 25 percent or less of the exterior, insulating sheathing is not
required where structural sheathing is used. If structural sheathing covers more than 25 percent of the exterior,
structural sheathing shall be supplemented with insulated sheathing of at least R-2.
g. Or insulation sufficient to fill the framing cavity, R-19 minimum. The second R-value applies when more than half
the insulation is on the interior of the mass wall.
h. The first value is cavity insulation, the second value is continuous insulation, so “13+5” means R-13 cavity
insulation plus R-5 continuous insulation. All rim joists and adjoining plates shall be air-sealed and insulated using
spray foam insulation to R-15 minimum.
i. The second R-value applies hwen more than half the insulation is on the interior of the mass wall. All rim joists
and adjoining plates shall be air-sealed.
(72) Table N1102.1.4 (Table R402.1.4) Equivalent U-Factors is hereby deleted in its entirety
and the following is hereby added in lieu thereof:
TABLE N1102.1.4
EQUIVALENT U-FACTORS
a
a. Non-fenestration U-factors shall be obtained from measurement, calculation or an approved source.
b. When more than half the insulation is on the interior, the mass wall U-factors shall be a maximum of 0.17 in
Zone 1, 0.14 in Zone 2, 0.12 in Zone 3, 0.087 in Zone 4 except Marine, 0.065 in Zone 5 and Marine 4, and
0.057 in Zones 6 through 8. the mass wall U-factor shall be the same as the frame wall U-factor.
c. Basement wall U-factor of 0.360 in warm-humid locations as defined by Figure N1101.10 (R301.1) and
Table (R301.1)
(73) Section N1102.2 (R402.2) Specific insulation requirements is hereby retained in its
entirety with the following amendments:
N1102.2 (R402.2) Specific insulation requirements (prescriptive) (Mandatory) In
addition to the requirements of Section N1102.1, insulation shall meet the specific
requirements of Sections N1102.2.1 through N1102.2.13. All insulation shall be installed
to meet Residential Energy Services Network (RESNET) Grade I standard with six-sided
encapsulation.
CLIMATE ZONE
HEATING SYSTEM
TYPE
FENESTRATION
U-FACTOR
SKYLIGHT
U-FACTOR
CEILING
R-VALUE
FRAME WALL
U-FACTOR
MASS
WALL
U-FACTORb
FLOOR
U-FACTOR
BASEMENT
WALL
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Exceptions: RESNET Grade II is acceptable for:
1. cavity insulation in exterior walls that include continuous rigid insulating
sheathing and/or insulated siding with a minimum R-5 value; and
2. rim joist.
(74) Section N1102.2.1 (R402.2.1) Ceilings with attic spaces is hereby retained in its entirety
with the following amendments:
N1102.2.1 (R402.2.1) Ceilings with attic spaces
1. Where Section R1102.1.2 would require R-38 insulation in the ceiling, installing
R-30 over 100 percent of the ceiling area requiring insulation shall be deemed to
satisfy the requirement for R-38 wherever the full height of uncompressed R-30
insulation extends over the wall top plate at the eaves. Similarly, where Section
R1102.1.2 would require R-49 insulation in the ceiling, installing R-38 over 100
percent of the ceiling area requiring insulation shall be deemed to satisfy the
requirement for R-49 insulation wherever the full height of uncompressed R-38
insulation extends over the wall top plate at the eaves. This reduction shall not
apply to the U-factor alternative approach in Section R1102.1.4 and the total UA
alternative in Section R1102.1.5.
2. (Mandatory) At the eaves, the insulation extending over the exterior wall top plate
shall be R-19 minimum.
Exception: In remodels of existing buildings, R-10 shall be installed over top plates
where the top plates are exposed during the remodel.
(75) Section N1102.2.3 (R402.2.3) Eave baffles is hereby retained in its entirety with the
following amendments:
N1102.2.3 (R402.2.3) Eave baffles and blocks (Mandatory). For air permeable
insulations in vented attics with ventilation from open or box soffits, a baffle shall be
installed to provide ventilation from the soffit to the attic adjacent to each soffit or eave
vent. In the case of continuous soffit vents, enough baffles shall be installed to maintain
the required attic ventilation from the soffit. Baffles shall maintain an opening equal or
greater than the size of the vent. The ventilation baffles shall extend over the top of the
attic insulation between rafters or trusses, maintaining a minimum 1” clear opening
below the roof deck and sufficient space for the minimum depth of attic insulation. The
baffle shall be permitted to be any solid material. All other spaces between rafters or
trusses shall be blocked full height, at the outside edge of the exterior wall top plate, with
air impermeable materials.
(76) A new Section N1102.2.7.1 (R402.2.8.1) Rim insulation requirements is hereby added
to read as follows:
49
N1102.2.7.1 (R402.2.8.1) Rim insulation requirements All rim plates and rim joist that
are part of the thermal envelope shall be air-sealed. All rim plates and rim joist that are
part of the thermal envelope shall be insulated using spray foam materials to R-15
minimum when the basement walls are insulated to 10/13 in accordance with Table
N1102.1.2. Where spray foam insulation is not used at the rim joist and adjoining plates,
the rim joists and adjoining plates shall be insulated to minimum R-19.
(77) Section N1102.4.1.2 (R402.4.1.2) Testing is hereby retained in its entirety with the
following amendments:
N1102.4.1.2 (R402.4.1.2) Testing. The building or individual dwelling units shall be
tested and verified as having an air leakage rate of not exceeding 5 air changes per hour
in Zones 1 and 2, and 3 air changes per hour. in Zones 3 through 8. Testing shall be
conducted in accordance with ASTME e 779 or ASTEM E 1827 and reported with a
blower door at a pressure of 0.2 inches w.g. (50 Pascals) in accordance with Section 802
of the RESNET Mortgage Industry National Home Energy Rating Standards or City of
Fort Collins Building Code Protocol for New Multifamily Building Air Tightness Testing
in duplex or townhomes. Where required by the building official, testing shall be
conducted by an approved third party. A written report of the results of the test shall be
signed by the party conducting the test and provided to the building official. Testing shall
be performed at any time after creation of all penetrations of the building thermal
envelope. Isolation of attached garages from adjoining conditioned areas shall be verified
in accordance with City of Fort Collins protocols.
Testing shall occur after rough-in and after installation of penetrations of the building
thermal envelope, including but not limited to penetrations for utilities, plumbing,
electrical, ventilation and combustion appliances.
General requirements D during testing:
1. Exterior windows and doors, fireplace and stove doors shall be closed, but not
sealed, beyond the intended weather-stripping or other infiltration control
measures;
2. Dampers including exhaust, intake, makeup air, backdraft and flue dampers shall
be closed, but not sealed beyond intended infiltration control measures;
3. Interior doors, if installed at the time of the test, shall be open;
4. Exterior doors for continuous ventilation systems and heat recovery ventilators
shall be closed and sealed;
5. Heating and cooling systems, if installed at the time of the test, shall be turned
off; and;
6. Supply and return registers, if installed at the time of the test, shall be fully open.;
50
7. Combustion air inlets shall not be closed or otherwise obstructed; and
8. Garage doors to the exterior shall be closed.
In additions or alterations to existing buildings, air sealing compliance shall be
considered acceptable when the items listed in Table N1102.4.1.1, applicable to the
method of construction, are field-verified.
(78) Section N1102.5 Maximum fenestration U-factor and SHGC (Mandatory) is hereby
deleted in its entirety and the following is hereby added in lieu thereof:
N1102.5 (R402.5) Maximum fenestration U-factor and SHGC (Mandatory). The
area-weighted average maximum fenestration U-factor permitted using tradeoffs from
Secton N1102.1.4 or N1105 shall be 0.48 in Zones 4 and 5 and 0.40 in Zones 6 through 8
for vertical fenestration, and 0.75 in Zones 4 through 8 for skylights. The area-weighted
average maximum fenestration SHGC permitted using tradeoffs from Secton N1105 in
Zones 1 through 3 shall be 0.50.
N1102.5 (R402.5) Maximum fenestration U-factor and SHGC (Mandatory). For new
construction and additions that require a building permit, the area-weighted average
maximum fenestration U-factor permitted using trade-offs from Section N1102.1.4 or
N1105 shall be 0.40 for vertical fenestration, and 0.75 for skylights.
(79) Section N1103.3.1 (R403.3.1) Insulation is hereby retained in its entirety with the
following amendments:
N1103.3.1 (R403.3.1) Insulation (Prescriptive) (Mandatory). Supply and return ducts
in attics shall be insulated to a minimum of R-8 where 3 inches (76.2 mm) in diameter
and greater and R-6 where less than 3 inches (76.2 mm) in diameter. Supply and return
ducts in other portions of the building shall be insulated to a minimum of R-6 where 3
inches (76.2 mm) in diameter or greater and R-4.2 where less than 3 inches (76.2 mm) in
diameter.
Exception: Ducts or portions thereof located completely inside the building thermal
envelope.
(80) Section N1104.1 (R404.1) Lighting equipment is hereby retained in its entirety with the
following amendments:
N1104.1 (R404.1) Lighting equipment (Mandatory). A minimum of 75 percent of the
lamps in permanently installed lighting fixtures shall be high-efficacy lamps or a
minimum of 75 percent 50 percent of the permanently installed lighting fixtures shall
contain only high-efficacy LED lamps.
51
(81) Section N1105.1 (R405.1)Scope is hereby retained in its entirety with the following
amendments:
N1105.1 (R405.1) Scope. This section establishes criteria for compliance using simulated
energy performance analysis. Such analysis shall include heating, cooling, and service
water heating energy only.
Exception: In addition to all Mandatory sections, new buildings, additions, or alterations
where the primary heat source is electrical shall comply with prescriptive portions of the
code.
(82) Section M1307.3 Elevation of ignition source is hereby retained in its entirety with the
following amendments:
M1307.3 Elevation of ignition source. Electrical devices, equipment and appliances
having an ignition source shall be elevated such that the source of ignition is not less than
18 inches (457 mm) above the floor in garages. For the purpose of this section, rooms or
spaces that are not part of the living space of a dwelling unit and that communicate with a
private garage through openings shall be considered to be part of the garage.
Exception: Elevation of the ignition source is not required for appliances that are listed
as flammable-vapor-ignition resistant.
(83) A new Section M1309 Testing and verification is hereby added to read as follows:
M1309 Testing and verification. Installed heating, cooling and ventilation systems
shall be performance-tested and adjusted to operate within design specifications, in
accordance with ANSI/ACCA QI 5-2010 HVAC Quality Installation Specification.
Documentation of results shall be submitted to the building official prior to the issuance
of the Certificate of Occupancy.
(84) Section M1401.3 Equipment and appliance sizing is hereby deleted in its entirety and
the following is hereby added in lieu thereof:
M1401.3 Equipment and appliance sizing.
Heating and cooling equipment and appliances shall be sized in accordance with ACCA
Manual S or other approved sizing methodologies based on building loads calculated in
accordance with ACCA Manual J or other approved heating and cooling calculation
methodologies.
Exception: Heating and cooling equipment and appliance sizing shall not be limited to
the capacities determined in accordance with Manual S where either of the following
conditions applies:
1. The specified equipment or appliance utilizes multistage technology or variable
refrigerant flow technology and the loads calculated in accordance with the approved
52
heating and cooling calculation methodology are within the range of the manufacturer’s
published capacities for that equipment or appliance.
2. The specified equipment or appliance manufacturer’s published capacities cannot
satisfy both the total and sensible heat gains calculated in accordance with the approved
heating and cooling calculation methodology and the next larger standard size unit is
specified.
M1401.3 Heating and cooling system design. The design of new heating and cooling
systems shall meet the requirements of this Section. Design documents shall be
submitted to the building official at the time of application for a building permit.
M1401.3.1 Equipment sizing. Heating and cooling equipment shall be sized in
accordance with ACCA Manual S, based on design building loads calculated in
accordance with ACCA Manual J, or other equivalent methodology approved by the
building official, using thermal design parameters in Table N1101.1 as amended. The
total equipment output capacity shall be between the following limits, as applicable for
the equipment type:
1. 95% and 115% of calculated system cooling load, for air conditioners and heat
pumps;
2. 95% and 125% of calculated system cooling load, for heat pumps with winter
heating dominated requirements;
3. 100% and 140% of calculated system heating load, for warm air systems, unless
dictated by the cooling equipment selection; and
4. 100% and 115% of calculated system heating load, for heating boilers.
Where no available equipment is within the applicable capacity limits, the next largest
nominal piece of equipment that is available may be used.
M1401.3.2 Room loads. Room-by-room design heating and cooling loads shall be
calculated.
M1401.3.3 Matched components. Air-conditioning, Heating and Refrigeration Institute
(AHRI) matched evaporators, condensing units and air handlers shall be required.
(85) Section, M1414.1 General is hereby retained in its entirety with the following
amendments:
M1414.1 General. Fireplace stoves shall be listed, labeled and installed in accordance
with the terms of the listing. Fireplace stoves shall be tested in accordance with UL 737.
Wood burning appliances shall meet the latest emission standards as stated by the State of
Colorado and Federal Regulation 40 CFR Part 60, Subpart AAA.
53
(86) Section M1501.1 Outdoor discharge is hereby retained in its entirety with the following
amendments:
M1501.1 Outdoor discharge. The air removed by every mechanical exhaust system
shall be discharged to the outdoors in accordance with Section M1506.2. such that the
exhaust termination is at least 10 feet (3048 mm) from intakes of other mechanical
ventilating systems. Air shall not be exhausted into an attic, soffit, ridge vent or crawl
space.
Exception: Whole-house ventilation-type attic fans that discharge into the attic space of
dwelling units having private attics shall be permitted.
(87) A new Section M1501.2 Indoor depressurization is hereby added to read as follows:
M1501.2 Indoor depressurization. Ducted exhaust systems shall not induce or create a
negative pressure sufficient to cause back-drafting of naturally vented, open combustion-
chamber, fuel-burning appliances, or create negative pressure in excess of negative 3 Pa.
in the immediate proximity of combustion chambers of such appliances.
(88) Section M1502.4.5.2 Manufacturer’s instructions, is hereby deleted in its entirety.
M1502.4.5.2 Manufacturer’s instructions. The size and maximum length of the exhaust
duct shall be determined by the dryer manufacturer’s installation instructions. The code
official shall be provided with a copy of the installation instructions for the make and
model of the dryer at the concealment inspection. In the absence of fitting equivalent
length calculations from the clothes dryer manufacturer, Table M1502.4.4.1 shall be
used.
(89) Section M1507.3 Whole-house mechanical ventilation system is hereby deleted in its
entirety and the following is hereby added in lieu thereof:
M1507.3 Whole-house mechanical ventilation system. Whole-house mechanical
ventilation systems shall be designed in accordance with Sections M1507.3.1 through
M1507.3.3.
M1507.3.1 System design. The whole-house ventilation system shall consist of one or
more supply or exhaust fans, or a combination of such, and associated ducts and controls.
Local exhaust or supply fans are permitted to serve as such a system. Outdoor air ducts
connected to the return side of an air handler shall be considered to provide supply
ventilation.
M1507.3.2 System controls. The whole-house mechanical ventilation system shall be
provided with controls that enable manual override.
54
M1507.3.3 Mechanical ventilation rate. The whole house mechanical ventilation
system shall provide outdoor air at a continuous rate of not less than that determined in
accordance with Table M1507.3.3(1).
Exception: The whole-house mechanical ventilation system is permitted to operate
intermittently where the system has controls that enable operation for not less than 25-
percent of each 4-hour segment and the ventilation rate prescribed in Table M1507.3.3(1)
is multiplied by the factor determined in accordance with Table M1507.3.3(2).
M1507.3 Whole-dwelling unit mechanical ventilation system. For new buildings, a
mechanical exhaust system, supply system, or combination thereof shall be installed for
each dwelling unit to provide whole-dwelling unit ventilation. Such system shall comply
with Sections M1507.3.1 through M1507.3.4.
M1507.3.1 Whole-dwelling unit mechanical ventilation rate. The whole-dwelling unit
mechanical ventilation system shall provide outdoor air at a continuous rate of not less
than that determined in accordance with Table M1507.3.3(1).
Exception: The whole-dwelling unit mechanical ventilation system is permitted to
operate intermittently where the system has controls that enable operation for not less
than 25-percent of each 4-hour segment and the ventilation rate prescribed in Table
M1507.3.3(1) is multiplied by the factor determined in accordance with Table
M1507.3.3(2).
M1507.3.2 System design. The design of the required whole-dwelling unit mechanical
ventilation system shall comply with the requirements of this Section. System design
documents shall be submitted to the building official at the time of application for a
building permit.
55
M1507.3.2.1 System type. The system shall consist of one or more supply or exhaust
fans, or a combination thereof, and associated ducts and controls. Exhaust fans shall be
permitted to be part of a mechanical exhaust system. Outdoor air ducts connected to the
return side of an air handler shall be considered to provide supply ventilation.
M1507.3.2.2 Outdoor air intakes. Outdoor air intakes shall have automatic dampers that
close when the ventilation system is not operating.
M1507.3.2.3 Exhausts. Exhausts shall have gravity dampers that close when the
ventilation system is not operating.
M1507.3.2.4. Air circulation fan motors. Motors for air circulation fans used in the
ventilation system, rated at one-quarter horsepower or greater, shall meet at least one of
the following criteria:
1. Where the furnace serves as an air handler for the ventilation system, the furnace
shall be certified as an “Electrically Efficient Furnace” by the Air-conditioning,
Heating and Refrigeration Institute (AHRI).
2. The blower motor shall be specified as a “Brushless DC” (BL or BLDC) motor by
the manufacturer.
3. The blower motor shall be specified as “Brushless Permanent Magnet” (BPM)
motor.
4. The blower motor shall be specified as “Electronically Commutated Motor”
(ECM)”.
5. The blower shall meet equivalent criteria acceptable to the building official.
M1507.3.2.5. System controls. The mechanical ventilation system shall be provided
with readily accessible and labeled controls that enable occupant override.
M1507.3.2.6. Sound ratings for fans. Whole-dwelling unit mechanical ventilation fans
shall be rated for sound at a maximum of 1.5 sones, in accordance with the procedures of
the Home Ventilating. Institute (HVI 915, Procedure for Loudness Rating of Residential
Fan Products).
Exception: Heating, ventilating and air conditioning air handlers and remote-mounted
fans need not meet sound requirements. To be considered for this exception, a remote-
mounted fan must be mounted outside the habitable spaces, bathrooms, toilets and
hallways, and there must be a least 4 ft (1 m) of ductwork between the fan and the intake
grille.
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M1507.3.3 System installation. The installation of the whole-dwelling unit mechanical
ventilation system and equipment shall be carried out in accordance with the
manufacturers’ design requirements and installation instructions.
M1507.3.4 Performance verification. Performance of installed mechanical ventilation
systems shall be verified in accordance with Section M1309.
(90) Section M1601.1 Duct design is hereby retained in its entirety with the following
amendments:
M1601.1 Duct design. Duct systems serving heating, cooling and ventilation equipment
in new buildings or new systems in additions shall be designed and fabricated in installed
in accordance with the provisions of this section and ACCA Manual D, the appliance
manufacturer’s installation instructions or other approved methods.
(91) Section M1601.1.1 Above-ground duct systems, is hereby retained in its entirety with the
following amendments:
…
7. Stud wall cavities and the spaces between solid floor joists to be used as air
plenums shall comply with the following conditions:
7.1. These cavities or spaces shall not be used as a plenum for supply air.
7.2. These cavities or spaces shall not be part of a required fire-resistance-rated
assembly.
7.3. Stud wall cavities shall not convey air from more than one floor level.
7.4. Stud wall cavities and joist-space plenums shall be isolated from adjacent
concealed spaces by tight-fitting fireblocking in accordance with Section R602.8.
7.5. Stud wall cavities in the outside walls of building envelope assemblies shall
not be utilized as air plenums.
. . .
(92) A new Section, M1601.4.11 Construction debris and contamination is hereby added to
read as follows:
M1601.4.11 Construction debris and contamination. Mechanical air-handling systems
and their related ducts shall be protected from the entrance of dirt, debris, and dust during
the construction and installation process. Prior to passing final inspection or issuance of a
Certificate of Occupancy, such systems shall be substantially free of construction-related
contaminants.
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(93) Section M1602.2 Return air openings is hereby retained in its entirety with the following
amendments:
M1602.2 Return Airair Openings openings. A return air path shall be provided in all
habitable rooms by means of ducts or transfer grills. Return air openings for heating,
ventilation and air conditioning systems shall comply with all of the following:
1. Openings shall not be located less than 10 feet (3048 mm) measured in any
direction from an open combustion chamber or draft hood of another appliance
located in the same room or space.
2. The amount of return air taken from any room or space shall be not greater than
the flow rate of supply air delivered to such room or space.
3. Return and transfer openings shall be sized in accordance with the appliance or
equipment manufacturers’ installation instructions, Manual D or the design of the
registered design professional.
4. Return air shall not be taken from a closet, bathroom, toilet room, kitchen, garage,
mechanical room, boiler room, furnace room or unconditioned attic.
Exceptions:
1. Taking return air from a kitchen is not prohibited where such return air openings
serve the kitchen only, and are located not less than 10 feet (3048 mm) from the
cooking appliances.
2. Dedicated forced-air systems serving only the garage shall not be prohibited from
obtaining return air from the garage.
3. Taking return air from an unconditioned crawl space shall not be accomplished
through a direct connection to the return side of a forced-air furnace. Transfer
openings in the crawl space enclosure shall not be prohibited.
4. Return air from one dwelling unit shall not be discharged into another dwelling
unit.
(94) Section G2404.3 (301.3) Listed and labeled is hereby retained in its entirety with the
following amendments:
G2404.3 (301.3) Listed and labeled. Appliances regulated by this code shall be listed
and labeled for the application in which they are used unless otherwise approved in
accordance with Section R104.11.” The approval of unlisted appliances in accordance
with Section R104.11 shall be based upon approved engineering evaluation.
58
(95) Section G2406.2 (303.3) Prohibited locations is hereby retained in its entirety with the
following amendments:
…
3. A single wall-mounted unvented room heater is installed in a bathroom and such
unvented room heater is equipped as specified in Section G2445.6 and has an input rating
not greater than 6,000 Btu/h (1.76 kW). The bathroom shall meet the required volume
criteria of Section G2407.5.
4. A single wall-mounted unvented room heater is installed in a bedroom and such
unvented room heater is equipped as specified in Section G2445.6 and has an input rating
not greater than 10,000 Btu/h (2.93 kW). The bedroom shall meet the required volume
criteria of Section G2407.5.
…
(96) A new Section G2406.4 (303.5.1) Natural Draft Appliances locations, is hereby added
to read as follows:
G2406.4 Natural Draft Appliances locations. For new buildings and new appliance or
new HVAC systems installed within additions, natural draft appliances shall not be
located within the building thermal envelope or be located in a space where the only
access to that space is from sleeping rooms, bathrooms, toilet rooms, storage closets, or
surgical rooms.
Exceptions:
1. Where natural draft appliances are located in an enclosed mechanical room and
sealed to air flow from adjoining conditioned area and the following conditions
are met:
a. The access to the mechanical room is through a self-closing, gasketed
door;
b. No other exhaust appliances are located within the mechanical room;
c. The mechanical room is provided with outside combustion air as specified
in this code;
d. The isolation of the mechanical room from adjoining conditioned areas is
verified with a differential-pressure test not exceeding 45 Pascals,
performed by approved licensed contractors;
e. Such natural draft appliances pass a combustion safety test under worst-
case depressurization conditions in accordance with Building Performance
Institute (BPI) Technical Standards for the Heating Professional; and
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f. Documentation of satisfactory testing results are submitted to the building
official prior to final approval.
2. Natural draft fireplaces that pass a combustion safety test, under worst-case
depressurization conditions, performed by approved licensed contractors and
conducted in accordance with the Building Performance Institute (BPI) Technical
Standards for the Heating Professional, prior to final approval.
(97) Section G2407.11 (304.11) Combustion air ducts is hereby retained in its entirety with
the following amendments:
G2407.11(304.11)Combustion air ducts. Combustion air ducts shall comply with all of
the following:
1. Ducts shall be constructed of galvanized steel complying with Chapter 16 or of a
material having equivalent corrosion resistance, strength and rigidity.
Exception: Within dwellings units, unobstructed stud and joist spaces shall not be
prohibited from conveying combustion air, provided that not more than one required
fireblock is removed. Where the installation of galvanized steel ducts is not practical due
to existing finish materials within dwelling units that are undergoing alteration or
reconstruction, unobstructed stud and joist spaces shall not be prohibited from conveying
combustion air, provided that not more than one required fireblock is removed.
…
9. All combustion air openings or ducts shall be readily identifiable with an
approved label or by other means warning persons that obstruction of such
openings or ducts may cause fuel-burning equipment to release combustion
products and dangerous levels of carbon monoxide into the building.
…
(98) Section G2408.1 (305.1) General is hereby retained in its entirety with the following
amendments:
G2408.1(305.1) General. Equipment and appliances shall be installed as required by the
terms of their approval, in accordance with the conditions of listing, the manufacturer's
instructions and this code. Manufacturer's installation instructions shall be available on
the job site at the time of inspection. Where a code provision is less restrictive than the
conditions of the listing of the equipment or appliance or the manufacturer's installation
instructions, the conditions of the listing and the manufacturer's installation instructions
shall apply.
Unlisted appliances approved in accordance with Section G2404.3 shall be limited to
uses recommended by the manufacturer and shall be installed in accordance with the
manufacturer’s instructions, the provisions of this code and the requirements determined
by the code official.
60
Where natural draft appliances are replaced in existing buildings, all appliances with a
draft hood shall have a Combustion Safety Test (CST) performed under first, the worst-
case conditions and secondly, under natural conditions. The CST shall be performed by
licensed contractors in accordance with the Building Performance Institute (BPI)
Technical Standards for the Heating Professional. If the test passes under the worst-case
conditions, no further testing is required. If the appliance fails the worst-case conditions
proceed to the natural conditions test. Appliances that fail the natural conditions test shall
be repaired until a natural condition test is passed. Should an appliance not pass the
worst-case test, a disclosure form reporting the test results shall be provided to the
homeowner. A copy of such disclosure form, signed by the homeowner, shall be
submitted to the building official prior to approval.
(99) Section G2408.2 (305.3) Elevation of ignition source is hereby retained in its entirety
with the following amendments:
G2408.2 (305.3) Elevation of ignition source. Electrical devices, equipment and
appliances having an ignition source shall be elevated such that the source of ignition is
not less than 18 inches (457 mm) above the floor in hazardous locations and public
garages, private garages, repair garages, motor fuel-dispensing facilities and parking
garages. For the purpose of this section, rooms or spaces that are not part of the living
space of a dwelling unit and that communicate directly with a private garage through
openings shall be considered to be part of the private garage.
Exception: Elevation of the ignition source is not required for appliances that are listed
as flammable vapor ignition resistant.”
(100) Section G2409.4.4 (308.4.5) Clearance from supply ducts is hereby retained in its
entirety with the following amendments:
G2409.4.4 (308.4.5) Clearance from supply ducts. Supply air ducts connecting to listed
central heating furnaces where the bonnet temperature exceeds 150
o
F (68
o
C), shall have
the same minimum clearance to combustibles as required for the furnace supply plenum
for a distance of not less than 3 feet (914 mm) from the supply plenum. Clearance is not
required beyond the 3-foot (914 mm) distance.
(101) Section G2415.9 (404.9) Above-ground piping outdoors is hereby retained in its entirety
with the following amendments:
G2415.9 (404.9) Above-ground piping outdoors. All piping installed outdoors shall be
elevated not less than 31/2 inches (152 mm) 6 inches (152 mm) above ground and where
installed across roof surfaces, shall be elevated not less than 31/2 inches (152 mm) above
the roof surface. Piping installed above ground, outdoors, and installed across the surface
of roofs shall be securely supported and located where it will be protected from physical
damage. Where passing through an outside wall, the piping shall also be protected against
corrosion by coating or wrapping with an inert material. Where piping is encased in a
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protective pipe sleeve, the annular space between the piping and the sleeve shall be
sealed.
(102) Section G2415.12 (404.12) Minimum burial depth is hereby retained in its
entirety with the following amendments:
G2415.12 (404.12) Minimum burial depth. Underground piping systems shall be
installed a minimum depth of 12 inches (305 mm) 18 inches (457 mm) below grade,
except as provided for in Section G2415.12.1.
(103) Section G2415.12.1 (404.12.1) Individual outside appliance is hereby kept and
preserved in its entirety with the following amendments:
G2415.12.1 (404.12.1) Individual outside appliances. Individual lines to outside lights,
grills or other appliances shall be installed a minimum of 8 inches (203 mm) 18 inches
(457 mm) below finished grade, provided that such installation is approved and is
installed in locations not susceptible to physical damage.
Exception: Approved materials installed a minimum of 6 inches (152 mm) below
finished grade when covered with a concrete slab 3 1/2 inches (88.9 mm) in minimum
thickness, stone patio, concrete pavers or other approved materials.
(104) Section G2415.15 (404.15) Outlet closure is hereby retained in its entirety with the
following amendments:
G2415.15 (404.15) Outlet closures. Gas outlets and fittings that allow for future gas line
expansion that do not connect to appliances shall be provided with an approved gas
shutoff valve with the end capped gas tight.
Exception:
1. Listed and labeled flush-mounted-type quick-disconnect devices and listed and
labeled gas convenience outlets shall be installed in accordance with the
manufacturer’s installation instructions.
2. Drip/dirt legs installed at the floor level at appliances.
(105) Section G2416.1 (405.1) General is hereby retained in its entirety with the following
amendments:
G2416.1 (405.1) General. Changes in direction of pipe rigid metallic pipe specified in
G2414.4 shall be permitted to be made only by the use of fittings and factory bends. or
field bends.
(106) Section G2416.2 (405.2) Metallic pipe is hereby deleted in its entirety.
62
G2416.2 (405.2) Metallic pipe. Metallic pipe bends shall comply with the following:
1. Bends shall be made only with bending tools and procedures intended for that purpose.
2. All bends shall be smooth and free from buckling, cracks or other evidence of
mechanical damage.
3. The longitudinal weld of the pipe shall be near the neutral axis of the bend.
4. Pipe shall not be bent through an arc of more than 90 degrees (1.6 rad).
5. The inside radius of a bend shall be not less than six times the outside diameter of the
pipe.
(107) Section G2417.4.1 (406.4.1) Test pressure is hereby retained in its entirety with the
following amendments:
G2417.4.1 (406.4.1) Test pressure. The test pressure to be used shall be not less than
one and one-half times the proposed maximum working pressure, but not less than 3 psig
(20 kPa gauge), 10 psig (67 kPa gauge) irrespective of design pressure. Where the test
pressure exceeds 125 psig (862 kPa gauge), the test pressure shall not exceed a value that
produces a hoop stress in the piping greater than 50 percent of the specified minimum
yield strength of the pipe.
(108) A new Section G2420.3.1 (409.3.2.1) Exterior appliances is hereby added to read as
follows:
G2420.3.1 (409.3.2.1) Exterior appliances Any building serving exterior appliances
shall provide a shut-off valve at the exterior of the building.
(109) Section G2420.5.2 (409.5.2) Vented decorative appliances and room heaters is hereby
retained in its entirety with the following amendments:
G2420.5.2 (409.5.2) Vented decorative appliances and room heaters. Shutoff valves
for vented decorative appliances, room heaters and decorative appliances for installation
in vented fireplaces shall be permitted to be installed in an area remote from the
appliances where such valves are provided with ready access. Such valves shall be
permanently identified and shall serve no other appliance. Remote valves shall be
operable on the same floor as the appliance served and within 12 feet (3.658 m) of the
appliance as measured along the floor line. The piping from the shutoff valve to within 6
feet (1829 mm) of the appliance shall be designed, sized and installed in accordance with
Sections G2412 through G2419.
(110) Section G2421.3 (410.3) Venting of regulators is hereby retained in its entirety with the
following amendments:
63
G2421.3 (410.3) Venting of regulators. Pressure regulators that require a vent shall be
vented directly to the outdoors. The vent shall be designed to prevent the entry of insects,
water, or foreign objects. Vents shall not terminate within 3 feet (0.916 m) of openings
into the building.
Exception: A vent to the outdoors is not required for regulators equipped with and
labeled for utilization with an approved vent-limiting device installed in accordance with
the manufacturer’s instructions.
(111) Section G2425.8 (501.8) Appliances not required to be vented is hereby kept and
preserved in its entirety with the following amendments:
…
7. Room heaters listed for unvented use.
…
(112) Section G2427.5.5.1 (503.5.6.1) Chimney lining is hereby retained in its entirety with
the following amendments:
G2427.5.5.1 (503.5.6.1) Chimney lining. Chimneys shall be lined in accordance with
NFPA 211.
Exception: Where an existing chimney complies with Sections G2427.5.5 through
G2427.5.5.3 and its sizing is in accordance with Section G2427.5.4, its continued use
shall be allowed where the appliance vented by that chimney is replaced by an appliance
of similar type, input rating and efficiency.
(113) Section G2427.6.4 (503.6.5) Minimum height is hereby retained in its entirety with the
following amendments:
G2427.6.4 (503.6.5) Minimum height. A Type B or L gas vent shall terminate at least 5
feet (1524 mm) in vertical height above the highest connected appliance draft hood or
flue collar. A Type B-W gas vent shall terminate at least 12 feet (3658 mm) in vertical
height above the bottom of the wall furnace. All gas vents shall terminate a minimum of
22 inches (559 mm) above the surface or grade directly below.
(114) Section G2439.3 (614.4) Exhaust installation is hereby retained in its entirety with the
following amendments:
G2439.3 (614.4) Exhaust installation. Dryer exhaust ducts for clothes dryers shall
terminate on the outside of the building and shall be equipped with a backdraft damper.
Dryer exhaust duct terminations shall not be located within 36 inches (914 mm) of
exterior openings into conditioned spaces, crawl spaces and attics. Screens shall not be
installed at the duct termination. Ducts shall not be connected or installed with sheet
64
metal screws or other fasteners that will obstruct the flow. Clothes dryer exhaust ducts
shall not be connected to a vent connector, vent or chimney. Clothes dryer exhaust ducts
shall not extend into or through ducts or plenums.
(115) Section G2439.7.4.2 (614.8.4.2) Manufacturer’s instructions, is hereby deleted in its
entirety.
G2439.7.4.2 (614.8.4.2) Manufacturer’s instructions. The maximum length of the
exhaust duct shall be determined by the dryer manufacturer’s installation instructions.
The code official shall be provided with a copy of the installation instructions for the
make and model of the dryer. Where the exhaust duct is to be concealed, the installation
instructions shall be provided to the code official prior to the concealment inspection. In
the absence of fitting equivalent length calculations from the clothes dryer manufacturer,
Table G2439.5.5.1 shall be used.
(116) Section G2445 (621), Unvented Room Heaters, is hereby deleted in its entirety.
SECTION G2445 (621) UNVENTED ROOM HEATERS
G2445.1 (621.1) General. Unvented room heaters shall be tested in accordance with
ANSI Z 21.11.2 and shall be installed in accordance with the conditions of the listing and
the manufacturer’s installation instructions.
G2445.2 (621.2) Prohibited use. One or more unvented room heaters shall not be used
as the sole source of comfort heating in a dwelling unit.
G2445.3 (621.3) Input rating. Unvented room heaters shall not have an input rating in
excess of 40,000 Btu/h (11.7 kW).
G2445.4 (621.4) Prohibited locations. The location of unvented room heaters shall
comply with Section G2406.2.
G2445.5 (621.5) Room or space volume. The aggregate input rating of all unvented
appliances installed in a room or space shall not exceed 20 Btu/h per cubic foot (0.21
kW/m3) of volume of such room or space. Where the room or space in which the
appliance is installed is directly connected to another room or space by a doorway,
archway or other opening of comparable size that cannot be closed, the volume of such
adjacent room or space shall be permitted to be included in the calculations.
G2445.6 (621.6) Oxygen-depletion safety system. Unvented room heaters shall be
equipped with an oxygen-depletion sensitive safety shutoff system. The system shall shut
off the gas supply to the main and pilot burners when the oxygen in the surrounding
atmosphere is depleted to the percent concentration specified by the manufacturer, but
not lower than 18 percent. The system shall not incorporate field adjustment means
capable of changing the set point at which the system acts to shut off the gas supply to the
room heater.
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G2445.7 (621.7) Unvented decorative room heaters. An unvented decorative room
heater shall not be installed in a factory-built fireplace unless the fireplace system has
been specifically tested, listed and labeled for such use in accordance with UL 127.
G2445.7.1 (621.7.1) Ventless firebox enclosures. Ventless firebox enclosures used with
unvented decorative room heaters shall be listed as complying with ANSI Z21.91.
(117) A new Section G2447.6 (623.8) Kitchens with gas cooking is hereby added to read as
follows:
G2447.6 Kitchens with gas cooking. Residential kitchens with gas cooking appliances
shall be supplied with an exhaust system vented to the outside. Ducts serving kitchen
exhaust systems shall not terminate in an attic or crawl space or areas inside the building
and shall not induce or create a negative pressure in excess of negative 3 Pa or adversely
affect gravity-vented appliances.
(118) A new Section G2451.3 (630.3) Combustion and ventilation air is hereby added to read
as follows:
G2451.3 (630.3) Combustion and ventilation air Where infrared heaters are installed,
natural or mechanical means shall provide outdoor ventilation air at a rate of not less than
4 cfm per 1,000 Btu/h (0.38 m3/min/kW) of the aggregate input rating of all such heaters
installed in the space. Exhaust openings for removing flue products shall be above the
level of the heaters.
(119) Section G2454.1 (636.1) General is hereby retained in its entirety with the
following amendments:
G2454.1 (636.1) General. Permanently fixed-in-place outdoor decorative appliances
shall be tested in accordance with ANSI Z21.97 and shall be provided with a flame
safeguard device and be installed in accordance with the manufacturer’s instructions.
Appliances shall not be located beneath or within 10 feet (3048 mm) of combustible
construction or as allowed by the listing.
(120) Section P2503.5.1 Rough Plumbing is hereby retained in its entirety with the
following amendments:
P2503.5.1 Rough plumbing. DWV systems shall be tested on completion of the rough
piping installation by water or for piping systems other than plastic, by air with no
evidence of leakage. Either test shall be applied to the drainage system in its entirety or in
sections after rough piping has been installed, as follows:
1. Water test. Each section shall be filled with water to a point not less than 10 feet
(3048 mm) above the highest fitting connection in that section, or to the highest
66
point in the completed system. Water shall be held in the section under test for a
period of 15 minutes. The system shall prove leak free by visual inspection.
2. Air test. The portion under test shall be maintained at a gauge pressure of 5
pounds per square inch (psi) (34 kPa) or 10 inches of mercury column (34 kPa).
This pressure shall be held without introduction of additional air for a period of 15
minutes.
(121) Section P2903.2 Maximum flow and water consumption is hereby retained in its
entirety with the following amendments:
P2903.2 Maximum flow and water consumption. The maximum water consumption
flow rates and quantities for all plumbing fixtures and fixture fittings shall be in
accordance with Table P2903.2 and such fixtures shall be Environmental Protection
Agency (EPA) WaterSense® labeled fixtures or such fixtures and fittings that provide the
equivalent maximum flow rates.
(122) Table P2903.2 is hereby retained in its entirety with the following amendments:
Table P2903.2 Maximum Flow Rates and Consumption For Plumbing Fixtures and
Fixture Fittings
b
PLUMBING FIXTURE
OR FIXTURE FITTING
MAXIMUM FLOW RATES
Lavatory faucet
2.2 gpm at 60 psi
1.5 gpm at 60 psi
Shower heada
2.5 gpm at 80 psi
2.0 gpm at 80 psi
Sink faucet
2.2 gpm at 60 psi
1.8 gpm at 60 psi
Water closet
1.6 gallons per flushing cycle
1.28 gallons per flushing cycle, with minimum MaP threshold of 350 grams
For SI: 1 gallon per minute (gpm) = 3.785 L/m.
1 pound per square inch (psi) = 6.895 kPa
2 A handheld shower spray is also a shower head
3 Consumption tolerances shall be determined from referenced standards.
(123) A new Section E3401.5 Electrical Vehicle Ready is hereby added to read as follows:
Section E3401.5 Electrical Vehicle Ready. All new single family dwellings with an
attached garage or carport shall be provided with an empty conduit of 1/2 inch (12.7 mm)
minimum, installed from the dwellings electrical panel board to a junction box in readily
accessible location in the garage or carport, capable of supporting a 30 ampere 220 volt
outlet.
(124) A new Section E3401.6 Photovoltaic Ready is hereby added to read as follows:
Section E3401.6 Photovoltaic Ready All new single family dwellings shall be provided
with an empty conduit of 3/4 inch (19.05 mm) minimum, installed from the dwellings
67
attic space beneath the roof which most likely would support the majority of installed
photovoltaic system, to a junction box located within 12 inches of the dwellings electrical
meter or connected directly to the dwellings electrical panel board.
(125) Chapter 44 Referenced Standards is hereby retained in its entirety with the
following amendments:
…
ANSI/ACCA QI 5-2007 HVAC Quality Installation Specification.
Referenced in Amended 2012 IRC Section M1309 Performance verification
Installation Masters™ Testing and Certification Program
Referenced in Amended 2012 IRC Section R703.8.1 Fenestration installation
CDPH California Department of Public Health
1615 Capitol Avenue
Sacramento, CA 95814
CDPH 01350 Standard Method for Testing VOC emissions from indoor sources
Referenced in Amended 2012 IRC Section R325.1 Low-volatile organic compound
(VOC) materials.
FSC Forest Stewardship Council U.S. (FSC-US)
212 Third Avenue North, Suite 504
Minneapolis, MN 55401
GEI GREENGUARD Environmental Institute
2211 Newmarket Parkway, Suite 110
Marietta, GA 30067
GGPS.001.GREENGUARD IAQ Standard for Building Materials, Finishes and
Furnishings
Referenced in Amended 2012 IRC Section R325.1 Low-volatile organic compound
(VOC) materials.
Green Seal® 1001 Connecticut Avenue, NW
Suite 827
Washington, DC 20036-5525
GS-11 Paintings and Coatings
GS-43 Recycled Content Latex Paints
Referenced in Amended 2012 IRC Section R325.1 Low-volatile organic compound
(VOC) materials.
HVI Home Ventilating Institute
1000 N Rand Rd, Ste 214
Wauconda, IL 60084 USA
HVI referenced standard HVI 915, Procedure for Loudness Rating of Residential Fan
Products
68
Referenced in Amended 2012 IRC Section M1507.4.2.6. Sound ratings for fans.
IDA International Dark-Sky Association
3225 N. First Avenue
Tucson, Arizona 85719
IDA fixture seal of approval (FSA) third-party certification for luminaires that minimize
glare, reduce light trespass, and don’t pollute the night sky.
http://www.darksky.org/
http://www.darksky.org/outdoorlighting/mlo
http://www.darksky.org/outdoorlighting/about-fsa
RESNET® Mortgage Industry National Home Energy Rating Systems Standards
Residential Energy Services Network, Inc.
P.O. Box 4561
Oceanside, CA 92052-4561
http://resnet.us
RESNET® reference standard Grade I and Grade II Insulation
Referenced in Amended 2012 IRC Section N1102.2 Specific insulation requirements.
…
(126) APPENDIX E, MANUFACTURED HOUSING USED AS DWELLINGS, is hereby
adopted in its entirety.
(127) APPENDIX F, RADON CONTROL METHODS, is hereby retained in its
entirety with the following amendments:
APPENDIX F
RADON CONTROL METHODS
SECTION AF101
SCOPE
AF101.1 General. This appendix contains requirements for new construction in
jurisdictions where radon-resistant construction is required. Inclusion of this appendix by
jurisdictions shall be determined through the use of locally available data or
determination of Zone 1 designation in Figure AF101 and Table AF101(1).
SECTION AF102
DEFINITIONS
AF102.1 General. For the purpose of these requirements, the terms used shall be defined
as follows:
DRAIN TILE LOOP. A continuous length of drain tile or perforated pipe extending
around all or part of the internal or external perimeter of a basement or crawl space
footing.
69
RADON GAS. A naturally occurring, chemically inert, radioactive gas that is not
detectable by human senses. As a gas, it can move readily through particles of soil and
rock, and can accumulate under the slabs and foundations of homes where it can easily
enter into the living space through construction cracks and openings.
SOIL-GAS-RETARDER. A continuous membrane of 6-mil (0.15 mm) polyethylene or
other equivalent material used to retard the flow of soil gases into a building.
SUBMEMBRANE DEPRESSURIZATION SYSTEM. A system designed to achieve
lower sub membrane air pressure relative to crawl space air pressure by use of a vent
drawing air from beneath the soil-gas-retarder membrane
SUBSLAB DEPRESSURIZATION SYSTEM (Active). A system designed to achieve
lower subslab air pressure relative to indoor air pressure by use of a fan-powered vent
drawing air from beneath the slab.
SUBSLAB DEPRESSURIZATION SYSTEM (Passive). A system designed to achieve
lower subslab air pressure relative to indoor air pressure by use of a vent pipe routed
through the conditioned space of a building and connecting the subslab area with outdoor
air, thereby relying on the convective flow of air upward in the vent to draw air from
beneath the slab.
SECTION AF103
REQUIREMENTS
AF103.1 General. The following construction techniques are intended to resist radon
entry and prepare the building for post-construction radon mitigation, if necessary (see
Figure AF102). These techniques are required in areas where designated by the
jurisdiction.
AF103.2 Subfloor preparation. A layer of gas-permeable material shall be placed under
all concrete slabs and other floor systems that directly contact the ground and are within
the walls of the living spaces of the building, to facilitate future installation of a subslab
depressurization system, if needed. The gas-permeable layer shall consist of one of the
following:
1. A uniform layer of clean aggregate, a minimum of 4 inches (102 mm) thick. The
aggregate shall consist of material that will pass through a 2-inch (51 mm) sieve and be
retained by a 1/4-inch (6.4 mm) sieve.
2. A uniform layer of sand (native or fill), a minimum of 4 inches (102 mm) thick,
overlain by a layer or strips of geotextile drainage matting designed to allow the lateral
flow of soil gases.
3. Other materials, systems or floor designs with demonstrated capability to permit
depressurization across the
entire subfloor area.
70
AF103.3 Soil-gas-retarder. A minimum 6-mil (0.15 mm) [or 3-mil (0.075 mm) cross-
laminated] polyethylene or equivalent flexible sheeting material shall be placed on top of
the gas-permeable layer prior to casting the slab or placing the floor assembly to serve as
a soil-gas-retarder by bridging any cracks that develop in the slab or floor assembly, and
to prevent concrete from entering the void spaces in the aggregate base material. The
sheeting shall cover the entire floor area with separate sections of sheeting lapped at least
12 inches (305 mm). The sheeting shall fit closely around any pipe, wire or other
penetrations of the material. All punctures or tears in the material shall be sealed or
covered with additional sheeting.
AF103.4 Entry routes. Potential radon entry routes shall be closed in accordance with
Sections AF103.4.1 through AF103.4.10.
AF103.4.1 Floor openings. Openings around bathtubs, showers, water closets, pipes,
wires or other objects that
penetrate concrete slabs, or other floor assemblies, shall be filled with a polyurethane
caulk or equivalent sealant applied in accordance with the manufacturer’s
recommendations.
AF103.4.2 Concrete joints. All control joints, isolation joints, construction joints, and
any other joints in concrete slabs or between slabs and foundation walls shall be sealed
with a caulk or sealant. Gaps and joints shall be cleared of loose material and filled with
polyurethane caulk or other elastomeric sealant recommendations.
AF103.4.3 Condensate drains. Condensate drains shall be trapped or routed through
nonperforated pipe to daylight.
AF103.4.4 Sumps. Sump pits open to soil or serving as the termination point for subslab
or exterior drain tile loops shall be covered with a gasketed or otherwise sealed lid.
Sumps used as the suction point in a subslab depressurization system shall have a lid
designed to accommodate the vent pipe. Sumps used as a floor drain shall have a lid
equipped with a trapped inlet.
AF103.4.5 Foundation walls. Hollow block masonry foundation walls shall be
constructed with either a continuous course of solid masonry, one course of masonry
grouted solid, or a solid concrete beam at or above finished ground surface to prevent the
passage of air from the interior of the wall into the living space. Where a brick veneer or
other masonry ledge is installed, the course immediately below that ledge shall be sealed.
Joints, cracks or other openings around all penetrations of both exterior and interior
surfaces of masonry block or wood foundation walls below the ground surface shall be
filled with polyurethane caulk or equivalent sealant. Penetrations of concrete walls shall
be filled.
71
AF103.4.6 Dampproofing. The exterior surfaces of portions of concrete and masonry
block walls below the ground surface shall be dampproofed in accordance with Section
R406.
AF103.4.7 Air-handling units. Air-handling units in crawl spaces shall be sealed to
prevent air from being drawn into the unit. Exception: Units with gasketed seams or
units that are otherwise sealed by the manufacturer to prevent leakage.
AF103.4.8 Ducts. Ductwork passing through or beneath a slab shall be of seamless
material unless the air-handling system is designed to maintain continuous positive
pressure within such ducting. Joints in such ductwork shall be sealed to prevent air
leakage. Ductwork located in crawl spaces shall have all seams and joints sealed by
closure systems in accordance with Section M1601.4.1.
AF103.4.9 Crawl space floors. Openings around all penetrations through floors above
crawl spaces shall be caulked or otherwise filled to prevent air leakage.
AF103.4.10 Crawl space access. Access doors and other openings or penetrations
between basements and adjoining crawl spaces shall be closed, gasketed or otherwise
filled to prevent air leakage.
AF103.5 Passive submembrane depressurization system.
In buildings with crawl space foundations, the following components of a passive
submembrane depressurization system shall be installed during construction.
Exception: Buildings in which an approved mechanical crawl space ventilation system
or other equivalent system is installed.
AF103.5.1 Ventilation. Crawl spaces shall be provided with vents to the exterior of the
building. The minimum net area of ventilation openings shall comply with Section
R408.1.
AF103.5.2 Soil-gas-retarder. The soil in crawl spaces shall be covered with a
continuous layer of minimum 6-mil (0.15 mm) polyethylene soil-gas-retarder. The
ground cover shall be lapped a minimum of 12 inches (305 mm) at joints and shall extend
to all foundation walls enclosing the crawl space area.
AF103.5.3 Vent pipe. A plumbing tee or other approved connection shall be inserted
horizontally beneath the sheeting and connected to a 3- or 4-inch-diameter (76 or 102
mm) fitting with a vertical vent pipe installed through the sheeting. The vent pipe shall be
extended up through the building floors, and terminate at least 12 inches (305 mm) above
the roof in a location at least 10 feet (3048 mm) away from any window or other opening
into the conditioned spaces of the building that is less than 2 feet (610 mm) below the
exhaust point, and 10 feet (3048 mm) from any window or other opening in adjoining or
adjacent buildings.
72
AF103.6 Passive subslab depressurization system. In basement or slab-on-grade
buildings, the following components of a passive subslab depressurization system shall
be installed during construction.
AF103.6.1 Vent pipe. A minimum 3-inch-diameter (76 mm) ABS, PVC or equivalent
gas-tight pipe shall be embedded vertically into the subslab aggregate or other permeable
material before the slab is cast. A “T” fitting or equivalent method shall be used to ensure
that the pipe opening remains within the subslab permeable material. Alternatively, the 3-
inch (76 mm) pipe shall be inserted directly into an interior perimeter drain tile loop or
through a sealed sump cover where the sump is exposed to the subslab aggregate or
connected to it through a drainage system. The pipe shall be extended up through the
building floors, and terminate at least 12 inches (305 mm) above the surface of the roof in
a location at least 10 feet (3048 mm) away from any window or other opening into the
conditioned spaces of the building that is less than 2 feet (610 mm) below the exhaust
point, and 10 feet (3048 mm) from any window or other opening in adjoining or adjacent
buildings.
AF103.6.2 Multiple vent pipes. In buildings where interior footings or other barriers
separate the subslab aggregate or other gas-permeable material, each area shall be fitted
with an individual vent pipe. Vent pipes shall connect to a single vent that terminates
above the roof or each individual vent pipe shall terminate separately above the roof.
AF103.7 Vent pipe drainage. All components of the radon vent pipe system shall be
installed to provide positive drainage to the ground beneath the slab or soil-gas-retarder.
AF103.8 Vent pipe accessibility. Radon vent pipes shall be accessible for future fan
installation through an attic or other area outside the habitable space.
Exception: The radon vent pipe need not be accessible in an attic space where an
approved roof-top electrical supply is provided for future use.
AF103.9 Vent pipe identification. All exposed and visible interior radon vent pipes shall
be identified with at least one label on each floor and in accessible attics. The label shall
read: “Radon Reduction System.”
AF103.10 Combination foundations. Combination basement/ crawl space or slab-on-
grade/crawl space foundations shall have separate radon vent pipes installed in each type
of foundation area. Each radon vent pipe shall terminate above the roof or shall be
connected to a single vent that terminates above the roof.
AF103.11 Building depressurization. Joints in air ducts and plenums in unconditioned
spaces shall meet the requirements of Section M1601. Thermal envelope air infiltration
requirements shall comply with the energy conservation provisions in Chapter 11.
Fireblocking shall meet the requirements contained in Section R302.11.
73
AF103.12 Power source. To provide for future installation of an active submembrane or
subslab depressurization system, an electrical circuit terminated in an approved box shall
be installed during construction in the attic or other anticipated location of vent pipe fans.
An electrical supply shall also be accessible in anticipated locations of system failure
alarms.
APPENDIX F – RADON CONTROL METHODS
SECTION AF101 TITLE, SCOPE AND PURPOSE
AF101.1 Title. These provisions shall be known as Appendix Chapter F, the FORT
COLLINS RADON RESISTANT CONSTRUCTION CODE FOR ONE- AND TWO-
FAMILY DWELLINGS, and shall be cited as such and will be referred to herein as this
appendix.
AF101.2 Scope. The provisions of this appendix shall apply to new one- and two-family
dwellings completely separated from adjacent dwellings by unobstructed physical space
(detached) and multiple, attached single-family dwellings (townhouses) not more than
three stories in height and with each townhouse having its own separate means of egress.
AF01.3 Purpose. The purpose of this appendix is to provide minimum requirements to
enhance the public safety, health and general welfare, through construction methods
designed and installed to resist entry of radon gas into the occupied spaces of buildings
regulated by this appendix.
SECTION AF102
DEFINITIONS
AF102.1 General. For the purpose of these requirements, the terms used shall be defined
as follows:
DWELLING UNIT, SINGLE-FAMILY DETACHED. An independent building
completely separated from adjacent dwellings by unobstructed physical space,
exclusively containing one dwelling unit located entirely on a separately recorded and
platted parcel of land (site) bounded by property lines, and which parcel is deeded
exclusively for such single-family dwelling.
DWELLING UNIT, TWO-FAMILY DETACHED. An independent building
completely separated from adjacent dwellings by unobstructed physical space,
exclusively containing two dwelling units located entirely on a separately recorded and
platted parcel of land (site) bounded by property lines, and which parcel is deeded
exclusively for such two-family dwelling.
FOUNDATION DRAIN SYSTEM. A continuous length of drain tile, perforated pipe,
or filter mat extending around all or part of the internal or external perimeter of a
basement or crawl space footing designed to collect and drain away excess subsurface
water.
74
RADON. A naturally occurring, chemically inert, radioactive gas that is not detectable
by human senses and can move readily through particles of soil and rock and can
accumulate under the slabs and foundations of homes where it can easily enter the living
space through construction cracks and openings.
SOIL-GAS-RETARDER. A continuous membrane of 3-mil (0.075 mm) cross-linked
polyethylene or other equivalent material used to retard the flow of soil gases into a
building.
SUBFLOOR. A concrete slab and other approved permanent floor system that directly
contacts the ground and is within the walls of the living spaces of the building.
SUB-MEMBRANE DEPRESSURIZATION SYSTEM. A system designed to achieve
lower sub-membrane air pressure relative to crawl space air pressure by use of a vent
drawing air from beneath the soil-gas-retarder membrane.
SUB-SLAB DEPRESSURIZATION SYSTEM (Passive). A system designed to
achieve lower sub-slab air pressure relative to indoor air pressure by use of a vent pipe
routed through the conditioned space of a building and connecting the sub-slab area with
outdoor air, thereby relying on the convective flow of air upward in the vent to draw air
from beneath the slab.
TOWNHOUSE. A single-family dwelling unit constructed as part of a group of two or
more attached individual dwelling units, each of which is separated from the other from
the foundation to the roof and is located entirely on a separately recorded and platted
parcel of land (site) bounded by property lines, and which parcel is deeded exclusively
for such single-family dwelling.
SECTION AF103 REQUIREMENTS
AF103.1 General. The following required construction methods are intended to resist
radon entry and prepare the building for post-construction radon mitigation (see Figure
AF102).
AF103.2 Subfloor preparation. A layer of gas-permeable material shall be placed under
all subfloors. The gas-permeable layer shall consist of one of the following methods
except that where fills of aggregate size less than that described in Method 1are used
beneath a slab, Method 2,3, 4, or 5 must be used.
1. A uniform layer of clean aggregate, a minimum of 4 inches (102 mm) thick. The
aggregate shall consist of material that will pass through a 2-inch (51 mm) sieve
and be retained by a 1/4 -inch (6.4 mm) sieve. In buildings where interior footings
or other barriers separate sub-grade areas, penetrations through the interior
footing or barrier equal to a minimum of 12 square inches (0.094 m
2
) per 10 feet
75
(3.048 m) of barrier length shall be provided. A minimum of two penetrations
shall be provided per separation and be evenly spaced along the separation.
Exception:
In buildings where interior footings or other barriers separate the sub-grade area,
separate radon vent pipes may be installed for each sub-grade area as specified in
Section AF103.5.2 in lieu of penetrations through the barrier.
2. A foundation drain pipe system installed under concrete floor slab areas less than
2,000 square feet (186 m
2
), consisting of a continuous loop of minimum 3-inch
(76 mm.) diameter perforated pipe shall be laid in the sub-grade with the top of
pipe located 1 inch (25.4 mm) below the concrete slab. The pipe may be rigid or
flexible but shall have perforations fully around the circumference with a free air
space equal to 1.83 square inches per square foot (127 cm
2
/ m
2
) of exterior pipe
surface area. Such pipe shall be wrapped with approved filter material to prevent
blocking of pipe perforations. The pipe loop shall be located inside of the exterior
perimeter foundation walls not more than 12 inches (305 mm) from the perimeter
foundation walls. In buildings where interior footings or other barriers separate
the sub-grade area, the loop of pipe shall penetrate, or pass beneath such interior
footings or barriers. For slab areas greater than 2,000 square feet (186 m
2
) but less
than 4,000 square feet (372 m
2
), the preceding configuration may be used
provided a minimum of 4-inch diameter (102 mm) pipe is installed. Slabs in
excess of 4,000 square feet (372 m
2
) shall have under them separate loops for
every additional 2,000 square feet (186 m
2
) of slab area when 3-inch (76 mm)
diameter pipe is used; or, slabs may have separate loops provided for each
additional increment in area between 2,000 square feet (186 m
2
) and 4,000 square
feet (372 m
2
) when 4-inch (102 mm) diameter pipe is used.
3. A foundation drain soil gas collection mat system installed under concrete floor
slab areas of 2,000 square feet (186 m
2
) or less, consisting of a continuous
rectilinear loop of soil gas collection mat or drainage mat having minimum
dimensions of 1 inch in height by 12 inches in width (25.4 mm in height x 305
mm in width) and a nominal cross-sectional air flow area of 12 square inches
(0.0078 m
2
) may be laid on top of the sub-grade. The mat shall be constructed of
a matrix that allows for the movement of air through it and be capable of
supporting the concrete placed upon it. The matrix shall be covered by approved
filter material on all four sides to prevent dirt or concrete from entering the
matrix. All breaches and joints in the filter material shall be repaired prior to the
placement of the slab. The loop shall be located inside the exterior perimeter
foundation walls and within 12 inches (305 mm) from the perimeter foundation
76
Slabs larger than 2,000 square feet (186 m
2
) but less than 4,000 square feet (372
m
2
) shall have under them an additional strip of mat that bisects the loop forming
two areas approximately equally divided by the two halves of the rectilinear loop.
Slabs larger than 4,000 square feet (372 m
2
) shall have separate loops for each
2,000 (186 m
2
) square feet; or, increased to 4,000 square feet (372 m
2
) when a
loop is bisected as specified in the preceding configuration.
4. A uniform layer of sand (native or fill), a minimum of 4 inches (102 mm) thick,
overlain by a layer or strips of geo-textile drainage matting designed to allow the
lateral flow of soil gases.
5. Other materials, systems or floor designs with demonstrated capability to permit
depressurization across the entire sub-floor area.
AF103.3 Entry routes. Potential radon entry routes shall be closed in accordance with
Sections AF103.3.1 through AF103.3.11.
AF103.3.1 Floor openings. Openings around bathtubs, showers, water closets, pipes,
wires or other objects that penetrate concrete slabs or other floor assemblies shall be
filled with a polyurethane caulk or equivalent sealant applied in accordance with the
manufacturer’s recommendations.
AF103.3.2 Concrete joints. All control joints, isolation joints, construction joints and
any other joints in concrete slabs or between slabs and foundation walls shall be sealed
with a caulk or sealant. Gaps and joints shall be cleared of loose material and filled with
polyurethane caulk or other elastomeric sealant applied in accordance with the
manufacturer’s recommendations.
AF103.3.3 Condensate drains. Condensate drains shall be trapped or routed through
non- perforated pipe to daylight.
AF103.3.4 Sumps. Sump pits open to soil or serving as the termination point for sub-slab
or exterior drain tile loops shall be covered with a gasketed or otherwise sealed lid.
Sumps used as the suction point in a sub-slab depressurization system shall have a lid
designed to accommodate the vent pipe. Sumps used as a floor drain shall have a lid
equipped with a trapped inlet and view port.
AF103.3.5 Foundation walls. Hollow block masonry foundation walls shall be
constructed with either a continuous course of solid masonry, one course of masonry
grouted solid, or a solid concrete beam at or above finished ground surface to prevent
passage of air from the interior of the wall into the living space. Where a brick veneer or
other masonry ledge is installed, the course immediately below that ledge shall be sealed.
Joints, cracks or other openings around all penetrations of both exterior and interior
surfaces of masonry block or wood foundation walls below the ground surface shall be
filled with polyurethane caulk or equivalent sealant. Penetrations of concrete walls shall
be filled.
77
AF103.3.6 Dampproofing. The exterior surfaces of portions of concrete and masonry
block walls below the ground surface shall be damp-proofed in accordance with Section
R406 of this appendix.
AF103.3.7 Air-handling units. Air-handling units in crawl spaces shall be sealed to
prevent air from being drawn into the unit.
Exception: Units with gasketed seams or units that are otherwise sealed by the
manufacturer to prevent leakage.
AF103.3.8 Ducts. Ductwork passing through or beneath a slab shall be of seamless
material unless the air-handling system is designed to maintain continuous positive
pressure within such ducting. Joints in such ductwork shall be sealed to prevent air
leakage. Ductwork located in crawl spaces shall have all seams and joints sealed by
closure systems in accordance with Section M1601.3.1.
AF103.4 Sub-membrane depressurization system. In buildings with interior structural
floors directly above under-floor spaces containing exposed soil surfaces that are not
protected by a sub-slab depressurization system, the following components of a sub-
membrane depressurization system shall be installed during construction.
Exception: Buildings in which an approved mechanical ventilation system complying
with Section R408 or such other equivalent system that provides equivalent
depressurization across the entire sub-membrane area as determined by the building
official is installed in the under-floor spaces.
AF103.4.1Ventilation. Crawl spaces and similar under-floor spaces shall be provided
with ventilation complying with Section R408.
AF103.4.2 Soil-gas-retarder. The exposed soil in under-floor spaces shall be covered
with a continuous layer of soil-gas-retarder. Such ground cover joints shall overlap 6
inches (152 mm) and be sealed or taped. The edges of the ground cover shall extend a
minimum of 6 inches (152mm) up onto all foundation walls enclosing the under-floor
space and shall be attached and sealed to foundation walls in an approved manner.
AF103.4.3 Vent pipe riser. A plumbing tee or other approved connection shall be
inserted horizontally beneath the sheeting and connected to a 3- or 4-inch-diameter (76
mm or 102 mm) fitting with a vertical vent pipe installed through the sheeting. The vent
pipe shall be extended up through the building floors, terminate at least 12 inches (305
mm) above the roof in a location at least 10 feet (3.048 m) away from any window or
other opening into the conditioned spaces of the building that is less than 2 feet (0.610 m)
below the exhaust point, and 10 feet (3.048 m) from any window or other opening in
adjoining or adjacent buildings.
78
AF103.5 Sub-slab depressurization system. The following components of a sub-slab
depressurization system shall be installed during construction under basement or slab-on-
grade floors.
AF103.5.1 Vent pipe riser. A minimum 3-inch-diameter (76 mm) ABS or PVC DWV
pipe, or equivalent gas-tight pipe shall be embedded vertically into the sub-slab aggregate
or other permeable material before the slab is cast. A “T” fitting or equivalent method
shall be used to ensure that the pipe opening remains within the sub-slab permeable
material. Alternatively, the 3-inch (76 mm) pipe shall be inserted directly into an interior
perimeter drain tile loop or through a sealed sump cover where the sump is exposed to the
sub-slab aggregate or connected to it through a drainage system.
All vent pipes shall be extended up through the building floors and terminate at least 12
inches (305 mm) above the surface of the roof in a location at least 10 feet (3.048 m)
away from any window, air intake, or other opening into the conditioned spaces of the
building that is less than 2 feet (0.610 m) below the exhaust point, and 10 feet (3.048 m)
from any window or other opening in adjoining or adjacent buildings. The discharge end
of vent pipe terminations shall be unobstructed and protected from small animal entry
with a corrosion-resistant screen having openings between .25 inch (6.4 mm) and .5 inch
(12.7 mm).
AF103.5.2 Multiple vent pipes. In buildings where interior footings or other barriers
separate the sub-slab aggregate or other gas-permeable material, each area shall be fitted
with an individual vent pipe. Vent pipes shall connect to a single vent that terminates
above the roof or each individual vent pipe shall terminate separately above the roof.
AF103.6 Vent pipe drainage. All components of the radon vent pipe system shall be
installed to provide positive drainage to the ground beneath the slab or soil-gas retarder.
AF103.7 Vent pipe accessibility. Radon vent pipes shall be accessible for fan
installation through an attic or other area outside the habitable space.
Exception: The radon vent pipe need not be accessible in an attic space where an
approved roof-top electrical supply is provided.
AF103.8 Vent pipe identification and notification. All exposed and visible interior
radon vent pipes shall be conspicuously identified with at least one label on each floor
and in attics provided with access openings. The label shall read substantially as follows:
Radon Reduction System. In addition to the preceding label, a notice shall be placed in a
conspicuous area near the vent pipe that states the following:
THIS RADON REDUCTION SYSTEM IS NOT REQUIRED TO BE TESTED AND IS
A (PASSIVE) SYSTEM, RELYING ENTIRELY ON NATURAL VENTILATION.
OCCUPANTS ARE ADVISED TO TEST FOR RADON AND TAKE REMEDIAL
ACTION AS NECESSARY BY INSTALLING A CONTINUOUSLY-OPERATING
FAN LOCATED IN THE VENT PIPE (ACCESS TYPICALLY PROVIDED IN THE
79
ATTIC) AND CONNECTED TO THE NEARBY PROVIDED ELECTRICAL
OUTLET. Call 1-800-767-RADON FOR MORE INFORMATION.
AF103.9 Combination foundations. Combination basement/crawl space or slab-on-
grade/crawl space foundations shall have separate radon vent pipes installed in each type
of foundation area. Each radon vent pipe shall terminate above the roof or shall be
connected to a single vent that terminates above the roof.
AF103.10 Building depressurization. Joints in air ducts and plenums in unconditioned
spaces shall be substantially air tight and permanently sealed with an approved sealant,
mastic, or other approved methods. Thermal envelope air infiltration requirements shall
comply with the energy conservation provisions in the energy conservation code
currently enacted by the City. Firestopping shall be in conformance with the most recent
general building code enacted by the City or meet the requirements contained in Section
R602.8.
AF103.11 Provisions for future depressurization fan installation. Permanent
provisions shall be made for the future installation of an in-line fan to be connected to
every radon vent pipe. Such designated fan locations shall be outside of the conditioned
envelope of the building, such as in the attic, garage and similar locations, excluding
crawl spaces and other interior under-floor spaces. Designated locations shall
accommodate an unobstructed permanent cylindrical space with the following minimum
dimensions: 12 inches (305 mm) measured radially around the radon vent pipe along a
vertical distance of 30 inches (760 mm). Designated fan locations shall be permanently
accessible for servicing and maintenance. An electrical circuit shall be provided within 4
feet (1.219 m) of and within sight from designated fan locations. Such circuit shall have a
means of positive disconnection and be terminated in an approved electrical outlet in
accordance with the applicable current electric code.
AF103.12 Depressurization fan system activation. When a passive system as
constructed in accordance with this appendix is to be converted to an active system, an
approved in-line fan shall be installed in a designated fan location as specified in Section
AF103.11.1. Additionally, an approved permanent electric light fixture and in-line pipe
couplings that facilitate fan replacement shall be provided. The in-line fan shall be
designed to operate continuously for a period of not less than five years and have a
minimum air-flow rating as established by the building official. A readily accessible
manometer or other approved warning device that notifies occupants of a fan malfunction
by a visible or audible signal shall be installed within the dwelling unit. A separate permit
shall be required for installation of such fan when it is not installed at the time the
building is originally approved for occupancy.
(128) APPENDIX H, PATIO COVERS, is hereby adopted in its entirety.
(129) APPENDIX M, HOME DAY-CARE R-3 OCCUPANCIES, is hereby adopted in its
entirety.
80
Introduced, considered favorably on first reading, and ordered published this 6th day of
June, A.D. 2017, and to be presented for final passage on the 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
Passed and adopted on final reading on this 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
NOTICE OF PUBLIC HEARING
NOTICE is hereby given of a public hearing to be held before the City Council of the
City of Fort Collins, Colorado, on the 6th day of June, A.D., 2017 at 6:00 p.m., or as soon
thereafter as the matter may come on for hearing, in the Council Chambers at the City Hall, 300
LaPorte Avenue, Fort Collins, Colorado for the purpose of considering the adoption of
ordinances adopting by reference the 2015 International Building Code, 2015 International
Residential Code, 2015 International Energy Conservation Code, 2015 International
Mechanical Code, and the 2015 International Fuel Gas Code together with local amendments,
promulgated by the International Code Council.
Not less than one (1) copy of said Codes has been, and now is on file in the Office of the
City Clerk of the City of Fort Collins and is available for public inspection.
The purpose of the International Building Code, International Residential Code,
International Energy Conservation Code, International Mechanical Code, and the International
Fuel Gas Code adopted by said ordinance is to provide for protection of public health and safety
and general welfare.
The City of Fort Collins will make reasonable accommodations for access to City
services, programs and activities and will make special communication arrangements for persons
with disabilities. Please call 221-6515 (V/TDD: Dial 711 for Relay Colorado) for assistance.
This notice is given and published by order of the City of Fort Collins, Colorado.
Dated at Fort Collins, Colorado this 14th day of May, A.D. 2017.
Wanda Winkelmann
City Clerk
EXHIBIT A
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ORDINANCE NO. 075, 2017
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5, ARTICLE IV OF THE CODE OF THE
CITY OF FORT COLLINS FOR THE PURPOSE OF REPEALING THE
2012 INTERNATIONAL MECHANICAL CODE (IMC), AND ADOPTING THE
2015 INTERNATIONAL MECHANICAL CODE, WITH AMENDMENTS
WHEREAS, since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS, upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS, the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2015 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed, both in order to align the publication years of the codes
and also because the 2015 publications contain improvements in construction code regulation;
and
WHEREAS, City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals; and
WHEREAS, the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS, the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its citizens that the 2012 International Mechanical Code, as
adopted and amended by the City pursuant to Ordinance No. 021, 2014, be repealed, and that in
its place, the 2015 International Mechanical Code be adopted, with amendments.
WHEREAS, pursuant to the City Charter II, Section 7, City Council may enact any
ordinance which adopts a code by reference in whole or in part provided that before adoption of
such ordinance the Council hold a public hearing thereon and that notice of the hearing is
published twice in a newspaper of general circulation published in the City, with one of such
publications occurring at least eight (8) days preceding the hearing and the other publication
occurring at least fifteen (15) days preceding the hearing; and
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WHEREAS, in compliance with Article II, Section 7, the City Clerk published in the Fort
Collins Coloradoan such notice of hearing concerning adoption of the 2015 International
Mechanical Code on May 21, 2017, and May 28, 2017; and
WHEREAS, attached as Exhibit “A” and incorporated herein by reference is the Notice
of Public Hearing dated May 14, 2017, that was so published and which the Council hereby finds
meets the requirements of Article II, Section 7 of the City Charter.
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows:
Section 1. That the City Council hereby makes and adopts the determinations and
findings contained in the recitals set forth above.
Section 2. That Section 5-106 of the Code of the City of Fort Collins is hereby
amended to read as follows:
Sec. 5-106. – Adoption of standards.
Pursuant to the power and authority conferred on the City Council by Section 31-16-202,
C.R.S., and Article II, Section 7 of the Charter, the City Council hereby repeals
the 20092012 International Mechanical Code (20092012 IMC) and adopts as the
mechanical code of the City the 20122015 International Mechanical Code (20122015
IMC), published by the International Code Council, which shall have the same force and
effect as though set forth in full herein except as amended pursuant to Section 5-107 of
the City Code. The subject matter of the 20122015 International Mechanical
Code (20122015 IMC), adopted herein includes comprehensive provisions and standards
regulating and controlling the design, construction, installation, quality of materials,
location, operation and maintenance of heating, ventilating, cooling and refrigeration
systems, incinerators, miscellaneous heat-producing appliances for the purposes of
protecting public health, safety and general welfare. None of the 2015 International
Mechanical Code Appendices are hereby adopted.
Section 3. That Section 5-107 of the Code of the City of Fort Collins is hereby
repealed and re-enacted to read in its entirety as follows:
Sec. 5-107. - Amendments and deletions to codethe 2015 International Mechanical Code.
The 20125 INTERNATIONAL MECHANICAL CODE adopted hereinin § 5-106 is hereby
amended in the following respects:
(1) Section 101.1 Title is hereby retained in its entirety with the following amendments:
101.1 Title. These regulations shall be known as the Mechanical Code of the City of Fort
Collins, hereinafter referred to as “this code.”
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(2) Section 102.8 Referenced codes and standards is hereby retained in its entirety with the
following amendments:
Section 102.8 Reference codes and standards. The codes and standards referenced
herein shall be those that are listed in Chapter 15 Section 101.4 of the adopted
International Building Code, entitled “Referenced Codes” and shall be considered part of
the requirements of this code to the prescribed extent of each such reference.and as
further regulated in Sections 102.8.1 and 102.8.2.
Exception: Where enforcement of a code provision would violate the conditions of the
listing of the equipment or appliance, the conditions of the listing and the manufacturer’s
installation instructions shall apply.
(3) Section 103 Department of Mechanical Inspection is hereby deleted and replaced in its
entirety and the following is hereby added in lieu thereof:
SECTION 103
DEPARTMENT OF MECHANICAL INSPECTION
[A] 103.1 General.
The department of mechanical inspection is hereby created and the executive official in
charge thereof shall be known as the code official.
[A] 103.2 Appointment.
The code official shall be appointed by the chief appointing authority of the jurisdiction.
[A] 103.3 Deputies.
In accordance with the prescribed procedures of this jurisdiction and with the
concurrence of the appointing authority, the code official shall have the authority to
appoint a deputy code official, other related technical officers, inspectors and other
employees. Such employees shall have powers as delegated by the code official.
[A] 103.4 Liability.
The code official, member of the board of appeals or employee charged with the
enforcement of this code, while acting for the jurisdiction in good faith and without
malice in the discharge of the duties required by this code or other pertinent law or
ordinance, shall not thereby be rendered civilly or criminally liable personally, and is
hereby relieved from personal liability for any damage accruing to persons or property as
a result of an act or by reason of an act or omission in the discharge of official duties.
[A] 103.4.1 Legal defense.
Any suit or criminal complaint instituted against any officer or employee because of an
act performed by that officer or employee in the lawful discharge of duties and under the
provisions of this code shall be defended by the legal representatives of the jurisdiction
until the final termination of the proceedings. The code official or any subordinate shall
not be liable for costs in an action, suit or proceeding that is instituted in pursuance of the
provisions of this code.
SECTION 103 – CODE ADMINISTRATION
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103.1 Entity charged with code administration. The entity charged with code
administration shall be as determined in accordance with Section 103 of the adopted
International Building Code, entitled “Code Administration.”
(4) Sections 106.5 Fees, 106.5.1 Work commencing before permit issuance, 106.5.2 Fee
schedule, and 106.5.3 Fee refunds are hereby deleted and replaced in their entirety and
the following is hereby added in lieu thereof:
A] 106.5 Fees. A permit shall not be issued until the fees prescribed in Section 106.5.2
have been paid, nor shall an amendment to a permit be released until the additional fee, if
any, due to an increase of the mechanical system, has been paid.
[A] 106.5.1 Work commencing before permit issuance. Any person who commences
work on a mechanical system before obtaining the necessary permits shall be subject to
100 percent of the usual permit fee in addition to the required permit fees.
[A] 106.5.2 Fee schedule. The fees for mechanical work shall be as indicated in the
following schedule. [JURISDICTION TO INSERT APPROPRIATE SCHEDULE]
[A] 106.5.3 Fee refunds. The code official shall authorize the refunding of fees as
follows.
1. The full amount of any fee paid hereunder which was erroneously paid or collected.
2. Not more than [SPECIFY PERCENTAGE] percent of the permit fee paid when no
work has been done under a permit issued in accordance with this code.
3. Not more than [SPECIFY PERCENTAGE] percent of the plan review fee paid when
an application for a permit for which a plan review fee has been paid is withdrawn or
canceled before any plan review effort has been expended.
The code official shall not authorize the refunding of any fee paid, except upon written
application filed by the original permittee not later than 180 days after the date of fee
payment.
106.5 Payment of fees. All items relating to fees shall be as specified in Section 109 of
the adopted International Building Code, entitled “Fees.”
(5) Sections 107.3 Testing and verification, 107.3.1 New, altered, extended or repaired
systems, 107.3.2 Apparatus, material and labor for tests, and 107.3.3 Reinspection and
Testing are hereby deleted and replaced in their entirety and the following is hereby
added in lieu thereof:
107.3 Testing.
Mechanical systems shall be tested as required in this code and in accordance with
Sections 107.3.1 through 107.3.3. Tests shall be made by the permit holder and observed
by the code official.
[A] 107.3.1 New, altered, extended or repaired systems.
New mechanical systems and parts of existing systems, which have been altered,
extended, renovated or repaired, shall be tested as prescribed herein to disclose leaks and
defects.
[A] 107.3.2 Apparatus, material and labor for tests.
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Apparatus, material and labor required for testing a mechanical system or part thereof
shall be furnished by the permit holder.
[A] 107.3.3 Re-inspection and testing.
Where any work or installation does not pass an initial test or inspection, the necessary
corrections shall be made so as to achieve compliance with this code. The work or
installation shall then be resubmitted to the code official for inspection and testing.
107.3 Testing and verification. Installed heating, cooling and ventilation systems shall
be performance-tested by an approved agency and adjusted to operate within design
specifications, in accordance with ANSI/ACCA QI 5-2010 HVAC Quality Installation
Specification. Documentation of results shall be submitted to the building official prior to
approval.
Exception: Buildings subject to commissioning requirements in Section 3604.1 of the
2015 International Building Code as amended.
(6) Section 108.4 Violation Penalties is hereby retained in its entirety with the following
amendments:
108.4 Violation penalties. Persons who shall violate a provision of this code or shall fail
to comply with any of the requirements thereof or who shall erect, install, alter or repair a
mechanical work in violation of the approved construction documents or directive of the
code official, or of a permit or certificate issued under the provisions of this code, shall be
guilty of a [SPECIFY OFFENSE], punishable by a fine of not more than [AMOUNT]
dollars or by imprisonment not exceeding [NUMBER OF DAYS], or both such fine and
imprisonment. Each day that a violation continues after due notice has been served shall
be deemed a separate offense. misdemeanor and shall be subject to the penalties and
fines specified in Section 1-15 of the City Code.
(7) A new Section 108.4.1 Work Commencing before Permit Issuance is hereby added to
read as follows:
108.4.1 Work commencing before permit issuance. In addition to the penalties set
forth in Section 108.4, any person or firm who, before obtaining the necessary permit(s),
commences any construction of, or work on, a building, structure, electrical, gas,
mechanical or plumbing system that is not otherwise exempted from obtaining a permit,
shall be subject to a fine in addition to the standard prescribed permit fee. Said fine shall
be equal in amount to the permit fee, except that it shall not be less than $50 nor more
than $1,000 for the first such violation. A person or firm committing the same such
violation repeatedly shall be subject to a fine equal to double the amount of the permit fee
or double the amount of the fee imposed for the preceding violation, whichever is greater,
for every such subsequent violation committed within 180 days of a previous violation.
Said fines may be appealed to the City Manager pursuant to Chapter 2, Article VI of the
City Code.
(8) Section 109 Means of Appeal is hereby deleted and replaced in its entirety and the
following is hereby added in lieu thereof:
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SECTION 109
MEANS OF APPEAL
[A] 109.1 Application for appeal.
A person shall have the right to appeal a decision of the code official to the board of
appeals. An application for appeal shall be based on a claim that the true intent of this
code or the rules legally adopted thereunder have been incorrectly interpreted, the
provisions of this code do not fully apply, or an equally good or better form of
construction is proposed. The application shall be filed on a form obtained from the code
official within 20 days after the notice was served.
[A] 109.1.1 Limitation of authority.
The board of appeals shall not have authority relative to interpretation of the
administration of this code nor shall such board be empowered to waive requirements of
this code.
[A] 109.2 Membership of board.
The board of appeals shall consist of five members appointed by the chief appointing
authority as follows: one for 5 years; one for 4 years; one for 3 years; one for 2 years; and
one for 1 year. Thereafter, each new member shall serve for 5 years or until a successor
has been appointed.
[A] 109.2.1 Qualifications.
The board of appeals shall consist of five individuals, one from each of the following
professions or disciplines.
1. Registered design professional who is a registered architect; or a builder or
superintendent of building construction with not less than 10 years’ experience, 5 of
which shall have been in responsible charge of work.
2. Registered design professional with structural engineering or architectural
experience.
3. Registered design professional with mechanical and plumbing engineering
experience; or a mechanical contractor with not less than 10 years’ experience, 5 of
which shall have been in responsible charge of work.
4. Registered design professional with electrical engineering experience; or an
electrical contractor with not less than 10 years’ experience, 5 of which shall have been in
responsible charge of work.
5. Registered design professional with fire protection engineering experience; or a
fire protection contractor with not less than 10 years’ experience, 5 of which shall have
been in responsible charge of work.
[A] 109.2.2 Alternate members.
The chief appointing authority shall appoint two alternate members who shall be called
by the board chairman to hear appeals during the absence or disqualification of a
member. Alternate members shall possess the qualifications required for board
membership and shall be appointed for 5 years, or until a successor has been appointed.
[A] 109.2.3 Chairman.
The board shall annually select one of its members to serve as chairman.
[A] 109.2.4 Disqualification of member.
A member shall not hear an appeal in which that member has a personal, professional or
financial interest.
[A] 109.2.5 Secretary.
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The chief administrative officer shall designate a qualified clerk to serve as secretary to
the board. The secretary shall file a detailed record of all proceedings in the office of the
chief administrative officer.
[A] 109.2.6 Compensation of members.
Compensation of members shall be determined by law.
[A] 109.3 Notice of meeting.
The board shall meet upon notice from the chairman, within 10 days of the filing of an
appeal, or at stated periodic meetings.
[A] 109.4 Open hearing.
Hearings before the board shall be open to the public. The appellant, the appellant’s
representative, the code official and any person whose interests are affected shall be
given an opportunity to be heard.
[A] 109.4.1 Procedure.
The board shall adopt and make available to the public through the secretary procedures
under which a hearing will be conducted. The procedures shall not require compliance
with strict rules of evidence, but shall mandate that only relevant information be received.
[A] 109.5 Postponed hearing.
When five members are not present to hear an appeal, either the appellant or the
appellant’s representative shall have the right to request a postponement of the hearing.
[A] 109.6 Board decision.
The board shall modify or reverse the decision of the code official by a concurring vote
of three members.
[A] 109.6.1 Resolution.
The decision of the board shall be by resolution. Certified copies shall be furnished to the
appellant and to the code official.
[A] 109.6.2 Administration.
The code official shall take immediate action in accordance with the decision of the
board.
[A] 109.7 Court review.
Any person, whether or not a previous party of the appeal, shall have the right to apply to
the appropriate court for a writ of certiorari to correct errors of law. Application for
review shall be made in the manner and time required by law following the filing of the
decision in the office of the chief administrative officer.
109 Appeals. Appeals of decisions, determinations and interpretations of this code shall
be made pursuant to the applicable provisions of Section 113 of the adopted International
Building Code, entitled “Board of Appeals.”
(9) Section 202 GENERAL DEFINITIONS, is hereby amended to add, in alphabetical
order, the following definitions:
Multifamily. Any building housing group R-1, R-2 or R-4 occupancies.
Whole-dwelling unit mechanical ventilation system. An exhaust system, supply system,
or combination thereof that is designed to mechanically exchange indoor air for outdoor
air when operating continuously or through a programmed intermittent schedule to
satisfy the whole-dwelling ventilation rate.
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(10) Section 304.3 Elevation of ignition source is hereby retained in its entirety with the
following amendments:
304.3 Elevation of ignition source. Electrical devices, Eequipment and appliances
having an ignition source and located in hazardous locations and public garages, private
garages, repair garages, automotive motor fuel-dispensing facilities and parking garages
shall be elevated such that the source of ignition is not less than 18 inches (457 mm)
above the floor surface on which the equipment or appliance rests. For the purpose of this
Section, rooms or spaces that are not part of the living space of a dwelling unit and that
communicate directly with a private garage through openings shall be considered to be
part of the private garage.
Exception: Elevation of the ignition source is not required for appliances that are listed
as flammable vapor ignition resistant.
(11) Section 312.1 Load calculations is hereby retained in its entirety with the following
amendments:
312.1 Heating and cooling Lload calculations. Heating and cooling system design loads
for the purpose of sizing systems, appliances and equipment shall be determined in
accordance with the procedures described in the ASHRAE/ACCA Standard 183.
Alternatively, design loads shall be determined by an approved equivalent computation
procedure, using the design parameters specified in Chapter 3 of the International Energy
Conservation Code. adopted International Energy Conservation Code.
(12) A new Section 408 Whole-dwelling unit ventilation is hereby added to read as follows:
408.1 Whole-dwelling unit mechanical ventilation system. For new buildings, a
mechanical exhaust system, supply system, or combination thereof shall be installed for
each dwelling unit to provide whole-dwelling unit ventilation. Such system shall comply
with Sections 407.1.1 through 407.5.
408.1.1 Whole-dwelling unit ventilation rate. The dwelling unit mechanical ventilation
system shall provide outdoor air at a continuous rate of not less than that determined in
accordance with Table M1507.3.3(1).
Exception:
The whole-dwelling unit mechanical ventilation system is permitted to operate
intermittently where the system has controls that enable operation for not less than 25-
percent of each 4-hour segment and the ventilation rate prescribed in IRC Table
M1507.3.3(1) is multiplied by the factor determined in accordance with IRC Table
M1507.3.3(2).
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408.2 System design. The design of the required whole dwelling unit ventilation system
shall comply with the requirements of this Section. System design documents shall be
submitted, as required by the building official, at the time of application for a building
permit.
408.2.1 System type. The system shall consist of one or more supply or exhaust fans, or
a combination thereof, and associated ducts and controls. Exhaust fans shall be permitted
to be part of a mechanical exhaust system. Outdoor air ducts connected to the return duct
of a forced air furnace shall be considered to provide supply ventilation and shall be sized
to provide adequate mechanical ventilation in accordance with ASHRAE 62.2 and shall
meet the manufacturer’s requirements for minimum return air temperature to the furnace
heat exchanger.
408.2.2 Outdoor air intakes. Outdoor air intakes shall have automatic dampers that close
when the ventilation system is not operating.
408.2.3. Exhausts. Exhausts shall have gravity dampers that close when the ventilation
system is not operating.
408.2.4 Air Circulation fan motors. Motors for air circulation fans used in the
ventilation system, rated at one-quarter horsepower or greater, shall meet at least one of
the following criteria:
1. Where the furnace serves as an air handler for the ventilation system, the furnace
shall be certified as an “Electrically Efficient Furnace” by the Air-conditioning,
Heating and Refrigeration Institute (AHRI).
2. The blower motor shall be specified as a “Brushless DC” (BL or BLDC) motor by the
manufacturer.
3. The blower motor shall be specified as “Brushless Permanent Magnet” (BPM) motor.
- 10 -
4. The blower motor shall be specified as “Electronically Commutated Motor (ECM).”
5. The blower shall meet equivalent criteria acceptable to the building official.
408.2.5 System controls. The mechanical ventilation system shall be provided with
readily accessible and labeled controls that enable occupant override.
408.2.6 Sound ratings for fans. Whole-dwelling unit ventilation fans shall be rated for
sound at a maximum of 1.5 sones, in accordance with the procedures of the Home
Ventilating Institute (HVI 915, Procedure for Loudness Rating of Residential Fan
Products).
Exception:
Heating, ventilating and air conditioning air handlers and remote-mounted fans need not
meet sound requirements. To be considered for this exception, a remote-mounted fan
must be mounted outside the habitable spaces, bathrooms, toilets and hallways, and there
must be at least 4 ft (1 m) of ductwork between the fan and the intake grille.
408.3 System installation. The installation of the whole-dwelling unit ventilation system
and equipment shall be carried out in accordance with the manufacturers’ design
requirements and installation instructions.
408.4 Performance verification. Performance of installed mechanical ventilation
systems shall be verified in accordance with Section 107.3.
408.5 Multifamily buildings. In multifamily buildings, all doors between dwelling units
and common hallways shall be gasketed or otherwise substantially airtight with weather
stripping, except when the ventilation system explicitly requires transfer of air from
corridors into units.
(13) Section 504.1 Installation is hereby retained in its entirety with the following
amendments:
504.1 Installation. Clothes dryers shall be exhausted in accordance with the
manufacturer's instructions. Dryer exhaust systems shall be independent of all other
systems and shall convey the moisture and any products of combustion to the outside of
the building. Dryer exhaust duct terminations shall not be located within 36 inches (914
mm) of exterior openings into conditioned spaces, crawl spaces, and attic spaces.
Exception: This section shall not apply to listed and labeled condensing (ductless)
clothes dryers.
(14) Section 504.8.4.2 Manufacturer’s instructions is deleted in its entirety:
504.8.4.2 Manufacturer’s instructions. The maximum length of the exhaust duct shall
be determined by the dryer manufacturer’s installation instructions. The code official
shall be provided with a copy of the installation instructions for the make and model of
the dryer. Where the exhaust duct is to be concealed, the installation instructions shall be
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provided to the code official prior to the concealment inspection. In the absence of fitting
equivalent length calculations from the clothes dryer manufacturer, Table 504.8.4.1 shall
be used.
(15) Section 512.1 General is hereby retained in its entirety with the following amendments:
512.1 General. Where a subslab soil exhaust system is provided, the duct for such system
shall conform to the requirements of this section Section 1211 of the adopted
International Building Code, entitled “Radon-Resistant Construction.”
(16) Section 602.3 Stud cavity and joist space plenums is hereby deleted and replaced in its
entirety and the following is hereby added in lieu thereof:
602.3 Stud cavity and joist space plenums. Stud wall cavities and the spaces between
solid floor joists to be utilized as air plenums shall comply with the following conditions:
1. Such cavities or spaces shall not be utilized as a plenum for supply air.
2. Such cavities or spaces shall not be part of a required fire-resistance-rated
assembly.
3. Stud wall cavities shall not convey air from more than one floor level.
4. Stud wall cavities and joist space plenums shall comply with the floor penetration
protection requirements of the International Building Code.
5. Stud wall cavities and joist space plenums shall be isolated from adjacent
concealed spaces by approved fireblocking as required in the International
Building Code.
6. Studwall cavities in the outside walls of building envelope assemblies shall not be
utilized as air plenums.
Section 602.3 Building cavities (Mandatory). Building framing cavities shall not be
used as ducts or plenums.
(17) A new Section 602.3.1 Return air is hereby added to read as follows:
Section 602.3.1 Return air. Return air shall be taken from inside the dwelling. Dilution
of return air with outdoor air shall be permitted. A return air path shall be provided in
all habitable rooms by means of ducts or transfer grills.
(18) A new Section 603.18.3 Construction debris and contamination is hereby added to read
as follows:
603.18.3 Construction debris and contamination. Mechanical air-handling systems and
their related ducts shall be protected from the entrance of dirt, debris, and dust during the
construction and installation process. Prior to passing final inspection or issuance of a
Certificate of Occupancy, such systems shall be substantially free of construction-related
contaminants.
(19) Section 607.4 Access and identification is hereby retained in its entirety with the
following amendments:
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607.4 Access and identification. Fire and smoke dampers shall be provided with an
approved means of access, large enough to permit inspection and maintenance of the
damper and its operating parts. The access shall not affect the integrity of fire-resistance-
rated assemblies. The access openings shall not reduce the fire-resistance-rating of the
assembly. Access points shall be permanently identified on the exterior and readable
without the removal of finish ceiling works by a label having letters not less than 0.5 inch
(12.7 mm) in height reading: SMOKE DAMPER or FIRE DAMPER. Access doors in
ducts shall be tight-fitting and suitable for the required duct construction.
(20) Section 801.19 Multistory prohibited is hereby retained in its entirety with the following
amendments:
801.19 Multistory prohibited. Common venting systems for appliances located on more
than one floor level shall be prohibited, except engineered systems where all of the
appliances served by the common vent are located in rooms or spaces that are accessed
only from the outdoors. The appliance enclosures shall not communicate with the
occupiable areas of the building.
(21) A new Section 903.1.1 Solid fuel fireplaces and appliances is added to read as follows:
903.1.1 Solid fuel fireplaces and appliances. Solid fuel fireplaces, fireplace stoves and
solid-fuel-type room heaters shall also comply with Section 5-110 of the City Code.
(22) Section 903.3 Unvented gas logs heaters is deleted in its entirety:
903.3 Unvented gas log heaters. An unvented gas log heater shall not be installed in a
factory-built fireplace unless the fireplace system has been specifically tested, listed and
labeled for such use in accordance with UL 127.
Introduced, considered favorably on first reading, and ordered published this 6th day of
June, A.D. 2017, and to be presented for final passage on the 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
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Passed and adopted on final reading on this 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
NOTICE OF PUBLIC HEARING
NOTICE is hereby given of a public hearing to be held before the City Council of the
City of Fort Collins, Colorado, on the 6th day of June, A.D., 2017 at 6:00 p.m., or as soon
thereafter as the matter may come on for hearing, in the Council Chambers at the City Hall, 300
LaPorte Avenue, Fort Collins, Colorado for the purpose of considering the adoption of
ordinances adopting by reference the 2015 International Building Code, 2015 International
Residential Code, 2015 International Energy Conservation Code, 2015 International
Mechanical Code, and the 2015 International Fuel Gas Code together with local amendments,
promulgated by the International Code Council.
Not less than one (1) copy of said Codes has been, and now is on file in the Office of the
City Clerk of the City of Fort Collins and is available for public inspection.
The purpose of the International Building Code, International Residential Code,
International Energy Conservation Code, International Mechanical Code, and the International
Fuel Gas Code adopted by said ordinance is to provide for protection of public health and safety
and general welfare.
The City of Fort Collins will make reasonable accommodations for access to City
services, programs and activities and will make special communication arrangements for persons
with disabilities. Please call 221-6515 (V/TDD: Dial 711 for Relay Colorado) for assistance.
This notice is given and published by order of the City of Fort Collins, Colorado.
Dated at Fort Collins, Colorado this 14th day of May, A.D. 2017.
Wanda Winkelmann
City Clerk
EXHIBIT A
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ORDINANCE NO. 076, 2017
OF THE COUNCIL OF THE CITY OF FORT COLLINS
AMENDING CHAPTER 5, ARTICLE IV OF THE CODE OF THE
CITY OF FORT COLLINS FOR THE PURPOSE OF REPEALING THE
2012 INTERNATIONAL FUEL GAS CODE (IFGC) AND ADOPTING THE
2015 INTERNATIONAL FUEL GAS CODE, WITH AMENDMENTS
WHEREAS, since 1924, the City has reviewed, amended and adopted the latest
nationally recognized building standards available for the times; and
WHEREAS, upon recommendation of City staff, the City Council has determined that it
is in the best interests of the City to align the five interconnected basic construction codes under
one publication year; and
WHEREAS, the five interconnected basic construction codes are the International
Building Code, International Residential Code, International Mechanical Code, International
Fuel Gas Code, and International Energy Conservation Code; and
WHEREAS, the City Council has determined that the 2015 publication year of the five
interconnected basic construction codes ought to be adopted and that their counterpart codes
previously adopted should be repealed, both in order to align the publication years of the codes
and also because the 2012 publications contain improvements in construction code regulation;
and
WHEREAS, City staff has conducted a significant public outreach program, working
with the regulated construction industry and building professionals; and
WHEREAS, the adoption of the five interconnected basic construction codes has been
presented to and recommended by the Affordable Housing Board, the Commission on Disability,
the Air Quality Advisory Board, the Natural Resources Advisory Board, the Building Review
Board, the Electric Board, the Landmark Preservation Commission and the Water Board; and
WHEREAS, the City Council has determined that it is in the best interest of the health,
safety and welfare of the City and its citizens that the 2012 International Fuel Gas Code, as
adopted and amended by the City pursuant to Ordinance No. 022, 2014, be repealed, and that in
its place, the 2015 International Fuel Gas Code be adopted, with local amendments.
WHEREAS, pursuant to the City Charter II, Section 7, City Council may enact any
ordinance which adopts a code by reference in whole or in part provided that before adoption of
such ordinance the Council hold a public hearing thereon and that notice of the hearing is
published twice in a newspaper of general circulation published in the City, with one of such
publications occurring at least eight (8) days preceding the hearing and the other publication
occurring at least fifteen (15) days preceding the hearing; and
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WHEREAS, in compliance with Article II, Section 7, the City Clerk published in the Fort
Collins Coloradoan such notice of hearing concerning adoption of the 2015 International Fuel
Gas Code on May 21, 2017, and May 2, 2017; and
WHEREAS, attached as Exhibit “A” and incorporated herein by reference is the Notice
of Public Hearing dated May 14, 2017, that was so published and which the Council hereby finds
meets the requirements of Article II, Section 7 of the City Charter.
NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF
FORT COLLINS as follows:
Section 1. That the City Council hereby makes and adopts the determinations and
findings contained in the recitals set forth above.
Section 2. That Section 5-111 of the Code of the City of Fort Collins is hereby
amended to read as follows:
Sec. 5-111. Adoption of standards for fuel gas piping, equipment and accessories.
Pursuant to the power and authority conferred on the City Council by Section 31-16-202,
C.R.S., and Article II, Section 7 of the Charter, the City Council hereby repeals the 2012
International Fuel Gas Code (2012 IFGC), and adopts, as the fuel gas code of the City,
the 20122015 International Fuel Gas Code (20122015 IFGC), published by the
International Code Council, which shall have the same force and effect as though set
forth in full herein except as amended pursuant to Section 5-112 of the City Code. The
subject matter of the 20122015 International Fuel Gas Code (20122015 IFGC) adopted
herein includes comprehensive regulations governing the design, installation,
maintenance, alteration and inspection of fuel gas piping systems, fuel gas utilization
equipment and related accessories for the purposes of protecting public health, safety and
general welfare. None of the 2015 International Fuel Gas Code Appendices are hereby
adopted.
Section 3. That Section 5-112 of the Code of the City of Fort Collins is hereby
repealed and reenacted to read in its entirety as follows:
Sec. 5-112. Amendments and deletions to code the 2015 International Fuel Gas
Code.
The 201215 INTERNATIONAL FUEL GAS CODE adopted hereinin § 5-111 is hereby
amended in the following respects:
(1) Section 101.1 Title is hereby retained in its entirety with the following amendments:
101.1 Title. These regulations shall be known as the Fuel Gas Code of the City of Fort
Collins, hereinafter referred to as “this code.”
(2) Section 102.8 reference codes and standards is hereby retained in its entirety with the
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following amendments:
Section 102.8 reference codes and standards The codes and standards referenced in
this code shall be those that are listed in Chapter 8 Section 101.4 of the adopted
International Building Code, entitled “Referenced codes,” and such codes and standards
shall be considered as part of the requirements of this code to the prescribed extent of
each such reference and as further regulated in Sections 102.8.1 and 102.8.2.
Exception: Where enforcement of a code provision would violate the conditions of the
listing of the equipment or appliance, the conditions of the listing and the manufacturer's
installation instructions shall apply.
(3) Section 102.8.1, Conflicts is hereby deleted in its entirety:
102.8.1 Conflicts.
Where conflicts occur between the provisions of this code and the referenced standards,
the provisions of this code shall apply.
(4) Section 102.8.2, Provisions in referenced codes and standards is hereby deleted in its entirety:
102.8.2 Provisions in referenced codes and standards.
Where the extent of the reference to a referenced code or standard includes subject matter
that is within the scope of this code, the provisions of this code, as applicable, shall take
precedence over the provisions in the referenced code or standard.
(5) Section 103 Department Of Inspection is hereby deleted and replaced in its entirety and
the following is hereby added in lieu thereof:
SECTION 103
DEPARTMENT OF INSPECTION
103.1 General.
The Department of Inspection is hereby created and the executive official in charge
thereof shall be known as the code official.
103.2 Appointment.
The code official shall be appointed by the chief appointing authority of the jurisdiction.
103.3 Deputies.
In accordance with the prescribed procedures of this jurisdiction and with the
concurrence of the appointing authority, the code official shall have the authority to
appoint a deputy code official, other related technical officers, inspectors and other
employees. Such employees shall have powers as delegated by the code official.
103.4 Liability.
The code official, member of the board of appeals or employee charged with the
enforcement of this code, while acting for the jurisdiction in good faith and without
malice in the discharge of the duties required by this code or other pertinent law or
ordinance, shall not thereby be rendered civilly or criminally liable personally, and is
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hereby relieved from all personal liability for any damage accruing to persons or property
as a result of an act or by reason of an act or omission in the discharge of official duties.
103.4.1 Legal defense.
Any suit or criminal complaint instituted against any officer or employee because of an
act performed by that officer or employee in the lawful discharge of duties and under the
provisions of this code shall be defended by the legal representatives of the jurisdiction
until the final termination of the proceedings. The code official or any subordinate shall
not be liable for costs in an action, suit or proceeding that is instituted in pursuance of the
provisions of this code.
SECTION 103 – CODE ADMINISTRATION
103.1 Entity charged with code administration. The entity charged with code
administration shall be as determined in accordance with Section 103 of the adopted
International Building Code, entitled “Code Administration,” as amended and set forth in
Section 5-27(3) of the City Code.
(6) Section 106.6 Fees is hereby deleted and replaced in its entirety and the following is
hereby added in lieu thereof:
106.6 Fees. A permit shall not be issued until the fees prescribed in Section 106.6.2 have
been paid, nor shall an amendment to a permit be released until the additional fee, if any,
due to an increase of the installation, has been paid.
106.6 Fees. All items relating to fees shall be as specified in Section 109 of the adopted
International Building Code, entitled “Fees.”
(7) Section 106.6.1 Work commencing before permit issuance is hereby deleted in its
entirety:
106.6.1 Work commencing before permit issuance. Any person who commences work
on an installation before obtaining the necessary permits shall be subject to 100 percent
of the usual permit fee in addition to the required permit fees.
(8) Section 106.6.2 Fee schedule is hereby deleted in its entirety:
106.6.2 Fee schedule. The fees for work shall be as indicated in the following schedule.
[JURISDICTION TO INSERT APPROPRIATE SCHEDULE]
(9) Section 106.6.3 Fee refunds is hereby deleted in its entirety:
106.6.3 Fee refunds. The code official shall authorize the refunding of fees as follows.
1. The full amount of any fee paid hereunder that was erroneously paid or collected.
2. Not more than [SPECIFY PERCENTAGE] percent of the permit fee paid where work
has not been done under a permit issued in accordance with this code.
3. Not more than [SPECIFY PERCENTAGE] percent of the plan review fee paid where
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an application for a permit for which a plan review fee has been paid is withdrawn or
canceled before any plan review effort has been expended. The code official shall not
authorize the refunding of any fee paid, except upon written application filed by the
original permittee not later than 180 days after the date of fee payment.
(10) Section 108.4 Violation penalties is hereby retained in its entirety with the following
amendments:
108.4 Violation penalties. Persons who shall violate a provision of this code, fail to
comply with any of the requirements thereof or erect, install, alter or repair work in
violation of the approved construction documents or directive of the code official, or of a
permit or certificate issued under the provisions of this code, shall be guilty of a
[SPECIFY OFFENSE], punishable by a fine of not more than [AMOUNT] dollars or by
imprisonment not exceeding [NUMBER OF DAYS], or both such fine and
imprisonment. misdemeanor subject to the penalties and fines specified in Section 1-15
of the City Code. Each day that a violation continues after due notice has been served
shall be deemed a separate offense.
(11) A new Section 108.4.1 Work commencing before permit issuance is hereby added to
read as follows:
108.4.1 Work commencing before permit issuance. In addition to the penalties set
forth in Section 108.4, any person or firm who, before obtaining the necessary permit(s),
commences any construction of, or work on, a building, structure, electrical, gas,
mechanical or plumbing system that is not otherwise exempted from obtaining a permit,
shall be subject to a fine in addition to the standard prescribed permit fee. Said fine shall
be equal in amount to the permit fee, except that it shall not be less than $50 nor more
than $1,000 for the first such violation. A person or firm committing the same such
violation repeatedly shall be subject to a fine equal to double the amount of the permit fee
or double the amount of the fee imposed for the preceding violation, whichever is greater,
for every such subsequent violation committed within 180 days of a previous violation.
Said fines may be appealed to the City Manager pursuant to Chapter 2, Article VI of the
City Code.
(12) Section 109 Means Of Appeal is hereby deleted in its entirety and the following is
hereby added in lieu thereof:
109.1 Application for appeal.
A person shall have the right to appeal a decision of the code official to the board of
appeals. An application for appeal shall be based on a claim that the true intent of this
code or the rules legally adopted thereunder have been incorrectly interpreted, the
provisions of this code do not fully apply or an equally good or better form of
construction is proposed. The application shall be filed on a form obtained from the code
official within 20 days after the notice was served.
109.2 Membership of board.
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The board of appeals shall consist of five members appointed by the chief appointing
authority as follows: one for 5 years; one for 4 years; one for 3 years; one for 2 years and
one for 1 year. Thereafter, each new member shall serve for 5 years or until a successor
has been appointed.
109.2.1 Qualifications.
The board of appeals shall consist of five individuals, one from each of the following
professions or disciplines.
1. Registered design professional who is a registered architect; or a builder or
superintendent of building construction with not less than 10 years'
experience, 5 of which shall have been in responsible charge of work.
2. Registered design professional with structural engineering or architectural experience.
3. Registered design professional with fuel gas and plumbing engineering experience; or
a fuel gas contractor with not less than 10 years' experience, 5 of
which shall have been in responsible charge of work.
4. Registered design professional with electrical engineering experience; or an electrical
contractor with not less than 10 years' experience, 5 of which shall
have been in responsible charge of work.
5. Registered design professional with fire protection engineering experience; or a fire
protection contractor with not less than 10 years' experience, 5 of
which shall have been in responsible charge of work.
109.2.2 Alternate members.
The chief appointing authority shall appoint two alternate members who shall be called
by the
board chairman to hear appeals during the absence or disqualification of a member.
Alternate
members shall possess the qualifications required for board membership and shall be
appointed for 5 years, or until a successor has been appointed.
109.2.3 Chairman.
The board shall annually select one of its members to serve as chairman.
109.2.4 Disqualification of member.
A member shall not hear an appeal in which that member has a personal, professional or
financial interest.
109.2.5 Secretary.
The chief administrative officer shall designate a qualified clerk to serve as secretary to
the
board. The secretary shall file a detailed record of all proceedings in the office of the
chief
administrative officer.
109.2.6 Compensation of members.
Compensation of members shall be determined by law.
109.3 Notice of meeting.
The board shall meet upon notice from the chairman, within 10 days of the filing of an
appeal, or at stated periodic meetings.
109.4 Open hearing.
Hearings before the board shall be open to the public. The appellant, the appellant's
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representative, the code official and any person whose interests are affected shall be
given an
opportunity to be heard.
109.4.1 Procedure.
The board shall adopt and make available to the public through the secretary procedures
under which a hearing will be conducted. The procedures shall not require compliance
with
strict rules of evidence, but shall mandate that only relevant information be received.
109.5 Postponed hearing.
When five members are not present to hear an appeal, either the appellant or the
appellant's
representative shall have the right to request a postponement of the hearing.
109.6 Board decision.
The board shall modify or reverse the decision of the code official by a concurring vote
of three
members.
109.6.1 Resolution.
The decision of the board shall be by resolution. Certified copies shall be furnished to the
appellant and to the code official.
109.6.2 Administration.
The code official shall take immediate action in accordance with the decision of the
board.
109.7 Court review.
Any person, whether or not a previous party to the appeal, shall have the right to apply to
the
appropriate court for a writ of certiorari to correct errors of law. Application for review
shall be
made in the manner and time required by law following the filing of the decision in the
office of the chief administrative officer.
109 Means of Appeal. Appeals of decisions, determinations and interpretations of this
code shall be made pursuant to the applicable provisions of Section 113 of the adopted
International Building Code, entitled “Board of Appeals.”
(13) Section 301.3 Listed and labeled is hereby retained in its entirety with the following
amendments:
301.3 Listed and labeled. Appliances regulated by this code shall be listed and labeled
for the application in which they are used unless otherwise approved in accordance with
Section 105R104.11. The approval of unlisted appliances in accordance with Section 105
shall be based on approved engineering evaluation.
(14) Section 303.3 Prohibited locations is hereby retained in its entirety with the following
amendments:
. . .
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3. A single wall-mounted unvented room heater is installed in a bathroom and such
unvented room heater is equipped as specified in Section 621.6 and has an input rating
not greater than 6,000 Btu/h (1.76 kW). The bath room shall meet the required volume
criteria of Section 304.5.
4. A single wall-mounted unvented room heater is installed in a bedroom and such
unvented room heater is equipped as specified in Section 621.6 and has an input rating
not greater than 10,000 Btu/h (2.93 kW). The bedroom shall meet the required volume
criteria of Section 304.5.
5. 3. The appliance is installed in a room or space that opens only into a bedroom or
bathroom, and such room or space is used for no other purpose and is provided with a
solid weather-stripped door equipped with an approved self-closing device. All
combustion air shall be taken directly from the outdoors in accordance with Section
304.6.
(15) A new Section 303.5.1 Natural Draft Appliances locations is hereby added to read as
follows:
303.5.1 Natural draft appliances locations. For new buildings and new appliance or
new HVAC systems installed within additions, natural draft appliances shall not be
located within the building thermal envelope or be located in a space where the only
access to that space is from sleeping rooms, bathrooms, toilet rooms, storage closets, or
surgical rooms.
Exceptions
1. Where natural draft appliances are located in an enclosed mechanical room and
sealed to air flow from adjoining conditioned area and the following conditions
are met:
a. The access to the mechanical room is through a self-closing, gasketed
door;
b. No other exhaust appliances are located within the mechanical room;
c. The mechanical room is provided with outside combustion air as specified
in this code;
d. The isolation of the mechanical room from adjoining conditioned areas is
verified with a differential-pressure test not exceeding 45 Pascals,
performed by approved licensed contractors;
e. Such natural draft appliances pass a combustion safety test under worst-
case depressurization conditions in accordance with Building Performance
Institute (BPI) Technical Standards for the Heating Professional; and
f. Documentation of satisfactory testing results are submitted to the building
official prior to final approval.
2. Natural draft fireplaces that pass a combustion safety test, under worst-case
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depressurization conditions, performed by approved licensed contractors and
conducted in accordance with the Building Performance Institute (BPI) Technical
Standards for the Heating Professional, prior to final approval.
(16) Section 304.11 Combustion air ducts is hereby retained in its entirety with the following
amendments:
. . .
1. Ducts shall be constructed of galvanized steel complying with Chapter 6 of the
International Mechanical Code or of a material having equivalent corrosion
resistance, strength and rigidity.
Exception:
Where the installation of galvanized steel ducts is not practical due to existing finish
materials Wwithin dwelling units that are undergoing alteration or reconstruction,
unobstructed stud and joist spaces shall not be prohibited from conveying combustion air,
provided that not more than one required fireblock is removed.
. . .
9. All combustion air openings or ducts shall be readily identifiable with an
approved label or by other means warning persons that obstruction of such openings or
ducts may cause fuel-burning equipment to release combustion products and dangerous
levels of carbon monoxide into the building.
(17) Section 305.1 General is hereby retained in its entirety with the following amendments:
. . .
Unlisted appliances approved in accordance with Section 301.3 shall be limited to uses
recommended by the manufacturer and shall be installed in accordance with the
manufacturer’s instructions, the provisions of this code and the requirements determined
by the code official.
Where natural draft appliances are replaced in existing multi-family buildings, all
appliances with a draft hood shall pass a combustion safety test under natural conditions,
conducted by an approved agency in accordance with the Building Performance Institute
(BPI) Technical Standards for the Heating Professional. Such appliances shall also be
combustion safety tested under worst-case depressurization conditions, by an approved
agency in accordance with Building Performance Institute (BPI) Technical Standards for
the Heating Professional. Should an appliance not pass such test, a disclosure form
reporting the test results shall be provided to the dwelling unit owner. A copy of such
disclosure form, signed by the homeowner, shall be submitted to the Building Official
prior to approval.
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(18) Section 305.3 Elevation of ignition source is hereby retained in its entirety with the
following amendments:
305.3 Elevation of ignition source. Electrical devices, Eequipment and appliances
having an ignition source shall be elevated such that the source of ignition is not less than
18 inches (457 mm) above the floor in hazardous locations and public garages, private
garages, repair garages, motor fuel-dispensing facilities and parking garages. For the
purpose of this Section, rooms or spaces that are not part of the living space of a dwelling
unit and that communicate directly with a private garage through openings shall be
considered to be part of the private garage.
Exception: Elevation of the ignition source is not required for appliances that are listed
as flammable vapor ignition resistant.
(19) Section 308.4.5 Clearance from supply ducts is hereby retained in its entirety with the
following amendments:
308.4.5 Clearance from supply ducts. Supply air ducts connecting to listed central
heating furnaces where the bonnet temperature exceeds 150°F (68°C) shall have the same
minimum clearance to combustibles as required for the furnace supply plenum for a
distance of not less than 3 feet (914 mm) from the supply plenum. Clearance is not
required beyond the 3-foot (914 mm) distance.
(20) Section 404.9 Above-ground piping outdoors is hereby retained in its entirety with the
following amendments:
404.9 Above-ground piping outdoors. Piping installed outdoors shall be elevated not
less than 3 1/2 inches (152 mm) 6 inches (152 mm) above ground and where installed
across roof surfaces, shall be elevated not less than 3½ inches (15289 mm) above the roof
surface. Piping installed above ground, outdoors, and installed across the surface of roofs
shall be securely supported and located where it will be protected from physical damage.
Where passing through an outside wall, the piping shall be protected against corrosion by
coating or wrapping with an inert material. Where piping is encased in a protective pipe
sleeve, the annular space between the piping and the sleeve shall be sealed.
(21) Section 404.12 Minimum burial depth is hereby retained in its entirety with the
following amendments:
404.12 Minimum burial depth. Underground piping systems shall be installed a
minimum depth of 12 inches (305 mm) 18 inches (457 mm) below grade., except as
provided for in Section 404.10.1.
(22) Section 404.12.1 Individual outside appliances, is hereby retained in its entirety with the
following amendments:
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404.12.1 Individual outside appliances. Individual lines to outdoor lights, grills and
other appliances shall be installed a minimum of not less than 8 inches (203 mm) 18
inches (457 mm) below finished grade. , provided that such installation is approved and is
installed in locations not susceptible to physical damage.
Exception:
Approved materials installed a minimum of 6 inches (152 mm) below finished grade
when covered with a concrete slab 3 1/2 inches (89 mm) in minimum thickness, stone
patio, concrete pavers or other approved materials.
(23) Section 404.15 Outlet closure is hereby retained in its entirety with the following
amendments:
404.15 Outlet closures. Gas outlets and fittings which allow for future gas line
expansion that do not connect to appliances shall be provided with an approved gas
shutoff valve with the end capped gas-tight.
Exception:
1. Listed and labeled flush-mounted-type quick disconnect devices and listed and
labeled gas convenience outlets shall be installed in accordance with the
manufacturer’s instructions.
2. Drip/dirt legs installed at the floor level at appliances.
(24) Section 405.1 General is hereby retained in its entirety with the following amendments:
405.1 General. Changes in direction of rigid metallic pipe specified in Section 403.4
shall be permitted to be made only by the use of fittings, and factory bends or field bends.
(25) Section 405.2 Metallic pipe is hereby deleted in its entirety:
405.2 Metallic pipe. Metallic pipe bends shall comply with the following:
1. Bends shall be made only with bending tools and procedures intended for that purpose.
2. All bends shall be smooth and free from buckling, cracks or other evidence of
mechanical damage.
3. The longitudinal weld of the pipe shall be near the neutral axis of the bend.
4. Pipe shall not be bent through an arc of more than 90 degrees (1.6 rad).
5. The inside radius of a bend shall be not less than six times the outside diameter of the
pipe.
(26) Section 406.4.1 Test pressure is hereby retained in its entirety with the following
amendments:
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406.4.1 Test pressure. The test pressure to be used shall be not less than 1 ½ one and
one-half times the proposed maximum working pressure, but not less than 3 psig (20 kPa
gauge), 10 psig (67 kPa gauge) irrespective of design pressure. Where the test pressure
exceeds 125 psig (862 kPa gauge), the test pressure shall not exceed a value that produces
a hoop stress in the piping greater than 50 percent of the specified minimum yield
strength of the pipe.
(27) A new Section 409.3.2.1 Exterior appliances is hereby added to read as follows:
409.3.2.1 Exterior appliances. Any building serving exterior appliances shall provide a
shut-off valve at the exterior of the building.
(28) Section 409.5.2 Vented decorative appliances and room heaters is hereby retained in its
entirety with the following amendments:
409.5.2 Vented decorative appliances and room heaters. Shutoff valves for vented
decorative appliances, room heaters and decorative appliances for installation in vented
fireplaces shall be permitted to be installed in an area remote from the appliances where
such valves are provided with ready access. Such valves shall be permanently identified
and shall not serve another appliance. Remote valves shall be operable on the same floor
as the appliance served and within 12 feet (3.66 m) of the appliance as measured along
the floor line. The piping from the shutoff valve to within 6 feet (1829 mm) of the
appliance shall be designed, sized and installed in accordance with Sections 401 through
408.
(29) Section 410.3 Venting of regulators is hereby retained in its entirety with the following
amendments:
410.3 Venting of regulators. Pressure regulators that require a vent shall be vented
directly to the outdoors. The vent shall be designed to prevent the entry of insects, water
and foreign objects. Vents shall not terminate within 3 feet (0.916 m) of openings into the
building.
. . .
(30) Section 501.8 Appliances not required to be vented is hereby retained in its entirety with
the following amendments:
. . .
8. Room heaters listed for unvented use.
98. Direct-fired makeup air heaters.
10. Other appliances listed for unvented use and not provided with flue collars.
. . .
(31) Section 503.2.2 Well-ventilated spaces is hereby deleted in its entirety.
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503.2.2 Well-ventilated spaces. Where located in a large and well-ventilated space,
industrial appliances shall be permitted to be operated by discharging the flue gases
directly into the space.
(32) Section 503.5.6.1 Chimney lining is hereby retained in its entirety with the following
amendments:
. . .
Exception: Where an existing chimney complies with Sections 503.5.6 through 503.5.6.3
and its sizing is in accordance with Section 503.5.5, its continued use shall be allowed
where the appliance vented by such chimney is replaced by an appliance of similar type,
input rating and efficiency.
(33) Section 503.6.5 Minimum height is hereby retained in its entirety with the following
amendments:
503.6.5 Minimum height. A Type B or L gas vent shall terminate not less than 5 feet
(1524 mm) in vertical height above the highest connected appliance draft hood or flue
collar. A Type B-W gas vent shall terminate not less than 12 feet (3658 mm) in vertical
height above the bottom of the wall furnace. All gas vents shall terminate a minimum of
22 inches (559 mm) above the surface or grade directly below.
(34) Section 614.4 Exhaust installation is hereby retained in its entirety with the following
amendments:
614.4 Exhaust installation. Exhaust ducts for clothes dryers shall terminate on the
outside of the building and shall be equipped with a backdraft damper. Dryer exhaust
duct terminations shall not be located within 36 inches (914 mm) of exterior openings
into conditioned spaces, crawl spaces and attics. Screens shall not be installed at the duct
termination. Ducts shall not be connected or installed with sheet metal screws or other
fasteners that will obstruct the flow. Clothes dryer exhaust ducts shall not be connected to
a vent connector, vent or chimney. Clothes dryer exhaust ducts shall not extend into or
through ducts or plenums.
(35) Section 614.8.4.2 Manufacturer’s instructions is hereby deleted in its entirety:
Section 614.8.4.2 Manufacturer’s instructions The maximum length of the exhaust
duct shall be determined by the dryer manufacturer’s installation instructions. The code
official shall be provided with a copy of the installation instructions for the make and
model of the dryer. Where the exhaust duct is to be concealed, the installation
instructions shall be provided to the code official prior to the concealment inspection. In
the absence of fitting equivalent length calculations from the clothes dryer manufacturer,
Table 614.8.4.1 shall be utilized.
(36) Section 621 Unvented room heaters is hereby deleted in its entirety:
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SECTION 621 (IFGC)
UNVENTED ROOM HEATERS
621.1 General. Unvented room heaters shall be tested in accordance with ANSI Z21.11.2
and shall be installed in accordance with the conditions of the listing and the
manufacturer’s installation instructions. Unvented room heaters utilizing fuels other than
fuel gas shall be regulated by the International Mechanical Code.
621.2 Prohibited use. One or more unvented room heaters shall not be used as the sole
source of comfort heating in a dwelling unit.
621.3 Input rating. Unvented room heaters shall not have an input rating in excess of
40,000 Btu/h (11.7 kW).
621.4 Prohibited locations. Unvented room heaters shall not be installed within
occupancies in Groups A, E and I. The location of unvented room heaters shall also
comply with Section 303.3.
621.5 Room or space volume. The aggregate input rating of all unvented appliances
installed in a room or space shall not exceed 20 Btu/h per cubic foot (207 W/m3) of
volume of such room or space. Where the room or space in which the appliances are
installed is directly connected to another room or space by a doorway, archway or other
opening of comparable size that cannot be closed, the volume of such adjacent room or
space shall be permitted to be included in the calculations.
621.6 Oxygen-depletion safety system. Unvented room heaters shall be equipped with
an oxygen-depletion-sensitive safety shutoff system. The system shall shut off the gas
supply to the main and pilot burners when the oxygen in the surrounding atmosphere is
depleted to the percent concentration specified by the manufacturer, but not lower than 18
percent. The system shall not incorporate field adjustment means capable of changing the
set point at which the system acts to shut off the gas supply to the room heater.
621.7 Unvented decorative room heaters. An unvented decorative room heater shall not
be installed in a factory-built fireplace unless the fireplace system has been specifically
tested, listed and labeled for such use in accordance with UL 127.
621.7.1 Ventless firebox enclosures. Ventless firebox enclosures used with unvented
decorative room heaters shall be listed as complying with ANSI Z21.91.
(37) A new Section 623.3.1 Kitchens with gas cooking is hereby added to read as follows:
623.3.1 Kitchens with gas cooking. Gas cooking appliances in residential kitchens shall
be supplied with an exhaust system vented to the outside. Ducts serving kitchen exhaust
systems shall not terminate in an attic or crawl space or areas inside the building and
shall not induce or create a negative pressure in excess of negative 3 Pa or adversely
affect gravity-vented appliances.
- 15 -
(38) Section 630.3 Combustion and ventilation air is hereby amended to read as follows:
630.3 Combustion and ventilation air. Where unvented infrared heaters are installed,
natural or mechanical means shall provide outdoor ventilation air at a rate of not less than
4 cfm per 1,000 Btu/h (0.38 m3/min/kW) of the aggregate input rating of all such heaters
installed in the space. Exhaust openings for removing flue products shall be above the
level of the heaters.
(39) Section 636 Outdoor decorative appliances is hereby retained in its entirety with the
following amendments:
636.1 General. Permanently fixed-in-place outdoor decorative appliances shall be tested
in accordance with ANSI Z21.97 and shall be provided with a flame safeguard device
and be installed in accordance with the manufacturer’s instructions. Appliances shall not
be located beneath or within 10 feet (3048 mm) of combustible construction.
(40) Chapter 8 REFERENCED STANDARDS is hereby amended to add, in alphabetical
order, the following additional referenced standards:
BPI Building Performance Institute
107 Hermes Road, Suite 110
Malta, NY 12020
BPI 104 Envelope Professional Standard and BPI Technical Standards for the Heating
Professional
Referenced in Amended 12 IFGC Section 303.5.1 Natural Draft Appliances Locations
and Section 305.1 General
Introduced, considered favorably on first reading, and ordered published this 6th day of
June, A.D. 2017, and to be presented for final passage on the 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
16
Passed and adopted on final reading on this 5th day of July, A.D. 2017.
__________________________________
Mayor
ATTEST:
_____________________________
City Clerk
NOTICE OF PUBLIC HEARING
NOTICE is hereby given of a public hearing to be held before the City Council of the
City of Fort Collins, Colorado, on the 6th day of June, A.D., 2017 at 6:00 p.m., or as soon
thereafter as the matter may come on for hearing, in the Council Chambers at the City Hall, 300
LaPorte Avenue, Fort Collins, Colorado for the purpose of considering the adoption of
ordinances adopting by reference the 2015 International Building Code, 2015 International
Residential Code, 2015 International Energy Conservation Code, 2015 International
Mechanical Code, and the 2015 International Fuel Gas Code together with local amendments,
promulgated by the International Code Council.
Not less than one (1) copy of said Codes has been, and now is on file in the Office of the
City Clerk of the City of Fort Collins and is available for public inspection.
The purpose of the International Building Code, International Residential Code,
International Energy Conservation Code, International Mechanical Code, and the International
Fuel Gas Code adopted by said ordinance is to provide for protection of public health and safety
and general welfare.
The City of Fort Collins will make reasonable accommodations for access to City
services, programs and activities and will make special communication arrangements for persons
with disabilities. Please call 221-6515 (V/TDD: Dial 711 for Relay Colorado) for assistance.
This notice is given and published by order of the City of Fort Collins, Colorado.
Dated at Fort Collins, Colorado this 14th day of May, A.D. 2017.
Wanda Winkelmann
City Clerk
EXHIBIT A
walls. In buildings where interior footings or other barriers separate the sub-
grade area, the mat shall penetrate these interior footings or barriers to form a
continuous loop around the exterior perimeter.
U-FACTOR
CRAWL
SPACE
WALL
U-FACTOR
1
Nonelectric heat
0.50
0.32
0.75
0.55
0.035
0.026
0.082
0.057
0.197
0.082
0.064
0.033
0.360
0.059
0.477
0.055
2
Electric heat
0,40
0.30
0.65
0.55
0.030
0.026
0.082
0.048
0.165
0.060
0.064
0.033
0.360
0.050
0.477
0.055
4 except Marine 0.35 0.55 0.026 0.057 0.098 0.047 0.059 0.065
5 and Marine 4 0.32 0.55 0.26 0.057 0.082 0.033 0.050 0.055
6 0.32 0.55 0.026 0.048 0.060 0.033 0.050 0.055
7 and 8 0.32 0.55 0.026 0.048 0.057 0.028 0.050 0.055
SPACE
WALL
R-
VALUE
1
Non-
Electric
heat
NR
0.32
0.75
0.55
0.25
NR
30
49
13
20 or
13 + 5
3/4
13/17
13
30
0
10/13h
15/19i
0
10,2
ft
0
10/13h
15/19i
2
Electric
heat
0.40
0.30
0.65
0.55
0.25
NR
38
49
13
20+5
4/6
15/19
13
30
0
15/19
0
10,3
ft
0
15/19
3 0.35 0.55 0.25 38 20 or 13
+ 5h
8/13 19 5/13f 0 5/13
4 except
Marine
0.35 0.55 0.40 49 20 or 13 _
5h
8/13 19 10/13 10,
2ft
10/13
5 and
Marine 4
0.32 0.55 NR 49 20 or 13
+ 5h
13/17 30q 15/19 10,
2ft
15/19
6 0.32 0.55 NR 49 20 + 5 or
13 + 10h
15/20 30q 15/19 10,
4ft
15/19
7 and 8 0.32 0.55 NR 49 20 + 5 or
13 + 10h
19/21 38q 15/19 10, 4
ft
15/10
For SI: 1 foot = 304.8mm
a. R-values are minimums. U-factors and SHGC are maximums. When insulation is installed in a cavity which
is lessthan the label or design thickness of the insulation, the installed R-value of the insulation shall not be less than the
R-value specified in the table.R-values are minimums. U-factors and SHGC are maximums. R-19 batts compressed into
a nominal 2x6 framing cavity such that the R-value is reduced by R-1 or more shall be marked with the compressed
batt R-value in addition to the full thickness R-value.
Weathering
a
Roof Ice
c
Damming
Frost line
depth
Termite
Decay
d
30psf
(1436.4p
a)
100 Nom
129 Ult
B
Severe
Yes
30 inches
(762mm)
Slight to
Moderate
None to
Slight
+6o F
(-14o C)
906
48.4
July 16,
1979
c
Damming
Frost line
depth
Termite Decay
d
30psf
(1436.4p
a)
100 Nom
129 Ult
B Severe Yes 30 inches
(762mm)
Slight to
Moderate
None to
Slight
+6o F
(-14o C)
906 48.4 July 16,
1979
ft
10/13h
15/19i
Electric heat
0.30 0.55 NR 49 20+5 15/19 30 15/19 10,3
ft
15/19
For SI: 1 foot = 304.8mm
a. R-values are minimums. U-factors and SHGC are maximums. R-19 batts compressed into a nominal 2x6 framing cavity such that the
R-value is reduced by R-1 or more shall be marked with the compressed batt R-value in addition to the full thickness R-value.
b. The fenestration U-factor column excludes skylights. The SHGC column applies to all glazed fenestration.
c. “15/19” means R-15 continuous insulation on the interior or exterior of the foundation wall or R-19 cavity insulation at the interior of
the foundation wall. “15/19” shall be permitted to be met with R-13 cavity insulation on the interior of the foundation wall plus R-5
continuous insulation on the interior or exterior of the foundation wall. “10/13” means R-10 continuous insulation on the interior or
exterior of the foundation wall or R-13 cavity insulation at the interior of the foundation wall.
d. R-5 shall be added to the required slab edge R-values for heated slabs.
e. Insulation shall fill the framing cavity, R-19 minimum.
f. First value is cavity insulation, second is insulated sheathing or siding, so “20+5” means R-20 cavity insulation plus R-5 insulated
sheathing. If structural sheathing covers 25 percent or less of the exterior, insulating sheathing is not required where structural
sheathing is used. If structural sheathing covers more than 25 percent of the exterior, structural sheathing shall be supplemented with
insulated sheathing of at least R-2.
g The second R-value applies when more than half the insulation is on the interior of the mass wall.
h. All rim joists and adjoining plates shall be air-sealed and insulated using spray foam insulation to R-15 minimum.
i. All rim joists and adjoining plates shall be air-sealed
(24) TABLE R402.1.4 Equivalent U-Factors is hereby deleted and replaced in its entirety and
the following is hereby added in lieu thereof:
TABLE R402.1.4
EQUIVALENT U-FACTORSa
HEATING
SYSTEM
TYPE
FENESTRATION
U-FACTOR
SKYLIGHT
U-FACTOR
CEILING
R-VALUE
FRAME
WALL
U-
FACTOR
MASS
WALL
U-FACTORb
FLOOR
U-FACTOR
BASEMENT
WALL
U-FACTOR
CRAWL
SPACE
WALL
U-FACTOR
Nonelectric heat 0.32 0.55 0.026 0.057 0.082 0.033 0.059 0.055
Electric heat 0.30 0.55 0.026 0.048 0.060 0.033 0.050 0.055
submitted to the building official prior to approval. If the building fails air leakage
testing, the testing agency is required to perform a diagnostic evaluation in
accordance with ASTM E1186-03(2009). The testing agency can use additional
Vertical Fenestration, (up to 40% of Wall maximum)
Nonmetal framing: allb
Metal fr: curtainwall/stonefrontc
Metal framing: entrance doorc
Metal framing: all otherc
U-0.25
U-0.35
U-0.70
U-0.45
Lighting Zone LZ-1. Light shall be shielded such that the lamp itself or the lamp image is
not directly visible outside the property perimeter. Exterior lighting associated with
existing buildings shall comply with the Land Use Code as adopted.
3604 Commissioning, Operations & Maintenance
3604.1 Building commissioning. For new completed and fully occupied buildings or
first time completed tenant finish spaces both with a gross floor area of greater than
15,000 ft
2
(1,395 m
2
) and additions with a gross floor area of greater than 15,000 ft
2
(1,395 m
2
), commissioning shall be performed in accordance with this Section. A
commissioning process shall be incorporated into the design and construction of the
depressurization across the entire sub-floor area.
1211.3.3 Entry routes. Potential radon entry routes shall be closed in accordance with
Sections 1211.3.4.1 through 1211.3.4.8
1211.3.3.1 Floor openings. Openings around bathtubs, showers, water closets, pipes,
wires or other objects that penetrate concrete slabs or other floor assemblies shall be